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In this installment of the Great Astronomers Series, we dive into the life and legacy of Henrietta Swan Leavitt, one of astronomy’s most quietly revolutionary figures. From painstakingly measuring the brightness of stars on photographic plates to uncovering the relationship that would become the foundation for modern cosmology, Leavitt’s work changed our understanding of the universe.

Learn how her discovery of the period-luminosity relationship in Cepheid variable stars enabled astronomers like Edwin Hubble to measure the vast distances between galaxies and prove that the universe is expanding.

In the episode, we go over:

·         Henrietta Leavitt’s early life and education

·         Her work as a Harvard “computer”

·         Discovering the Cepheid variable relationship

·         How her data made cosmic distance measurements possible

·         Her lasting impact on astronomy and why she deserves wider recognition

What did you think of Henrietta Leavitt’s story? Do you have a favorite “Great Astronomer” you’d like featured next? Drop a comment below, and don’t forget to like, subscribe, and share if you enjoyed the episode.

Carpe Noctem, Seize the Night!

Links:

Feel free to buy us a cup of coffee or two! We really appreciate it! 

https://tinyurl.com/AstroGuyCoffee

Our Facebook group page: https://www.facebook.com/groups/astroguypod

Cranford TV-35: https://www.cranfordnj.org/tv-35

Clark TV-36: https://www.ourclark.com/194/Clark-News---Our-Clark-Media

The Full Episode Guide of DSO’s sorted by Catalog Name: http://tinyurl.com/AGFullGuide

Charles Messier episode: https://youtu.be/3JvAEj29OBo?si=P7E2wCvIP9ZN00ZF

William Herschel episode: https://youtu.be/1sCFTQf03Wk?si=v5FNwCEf6YIRUWiU

Caroline Herschel episode: https://youtu.be/ZVrIHoOVmvY?si=jTcGgdBVkMCn5Rv7

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Here's a great resource for teachers to teach about Henrietta Leavitt: https://justaddh2oschool.com/2025/08/11/meet-henrietta-swan-leavitt-the-unsung-astronomer-who-measured-the-universe-great-astronomers-series/

High Point Scientific: https://www.highpointscientific.com/?rfsn=7714880.bb6129

Amazon: https://amzn.to/4gFQmOG

The Glass Universe: https://amzn.to/45rsR6W

Credits

Last and First Light

by Scott Buckley

 The Long Dark

by Scott Buckley

 Music promoted by 

https://www.chosic.com/free-music/all/

 Creative Commons CC BY 4.0

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In this episode of the AstroGuy Podcast, we dive into all the celestial highlights you can enjoy throughout August 2025. So, if you're new to astronomy or you’re a seasoned amateur, this episode is for you! 

Here's what we explore: 

Planetary Rundown — When and where to see the planets this month. Lunar Feature of the Month: Schröter’s Valley — Learn about this dramatic sinuous rille near the Aristarchus Plateau and why it’s a favorite for lunar observers. 

Astronomy News and more — We talk about some recent crewed space flights, and get an update about a great new tool from the Vera C. Rubin Observatory. 

Deep Sky Tour: Scorpius — Discover stunning objects like M4, M6, M7, M62, NGC 6231, M80, and our Deep Sky Challenge Object, NGC 6144. — Plus, a special look at Antares, the beating heart of the Scorpion. 

Whether you’re a beginner or a seasoned observer, you’ll get tips, background, and observing advice to help make the most of your time under the stars. 

Links: 

Feel free to buy us a cup of coffee or two! We really appreciate it! 

https://tinyurl.com/AstroGuyCoffee 

Our Facebook group page: https://www.facebook.com/groups/astroguypod 

The August 2025 Episode Guide: https://tinyurl.com/AGGuideAug2025 

The Full Episode Guide of DSO’s sorted by Catalog Name: http://tinyurl.com/AGFullGuide 

Our “Astronomy Basics” episode: https://youtu.be/MtUkLVneNYs 

Charles Messier episode: https://youtu.be/3JvAEj29OBo?si=P7E2wCvIP9ZN00ZF 

Check out our episode about the Vera C. Rubin Observatory!: https://youtu.be/1sCFTQf03Wk?si=nkc4_SaeR61Z5BOp 

Affiliate Links 

High Point Scientific: https://www.highpointscientific.com/?rfsn=7714880.bb6129 

Amazon: https://amzn.to/4gFQmOG 

Credits 

Phase Shift by Scott Buckley 

Under the Sun by Keys of Moon 

Last and First Light by Scott Buckley 

The Long Dark by Scott Buckley 

Music promoted by https://www.chosic.com/free-music/all/ 

Creative Commons CC BY 4.0

Creative Commons CC BY 3.0 https://creativecommons.org/licenses/... 

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Welcome to the AstroGuy Podcast! In this episode, we’re going to learn about a great new observatory, who it’s named for and learn about what’s behind this incredible instrument and take a look at its science mission.  We’ll also take a look at the first images that they’ve released which are just amazing!

If you enjoy the episode, please subscribe, comment, and share, and leave a review on your favorite podcast platform. Carpe Noctem!

Links:

Feel free to buy us a cup of coffee or two! We really appreciate it! 

https://tinyurl.com/AstroGuyCoffee

Our Facebook group page: https://www.facebook.com/groups/astroguypod

Cranford TV-35: https://www.cranfordnj.org/tv-35

Clark TV-36: https://www.ourclark.com/194/Clark-News---Our-Clark-Media

Our “Astronomy Basics” episode: https://youtu.be/MtUkLVneNYs

Charles Messier episode: https://youtu.be/3JvAEj29OBo?si=P7E2wCvIP9ZN00ZF

William Herschel episode: https://youtu.be/1sCFTQf03Wk?si=nkc4_SaeR61Z5BOp

Rubin Observatory First Look: https://rubinobservatory.org/gallery/collections/first-look-gallery 

Affiliate Links

High Point Scientific: https://www.highpointscientific.com/?rfsn=7714880.bb6129

Amazon: https://amzn.to/4gFQmOG

Audio Credits:

There was a time

by Scott Buckley

www.scottbuckley.com.au
 

Phase Shift

by Scott Buckley

www.scottbuckley.com.au

First and Last Light

by Scott Buckley

www.scottbuckley.com.au

Voice of Earth

Alex Productions

Music promoted by 

https://www.chosic.com/free-music/all/

Creative Commons CC BY 4.0

Creative Commons CC BY 3.0

https://creativecommons.org/licenses/...

A very special thank you

To the Vera C. Rubin Observatory

and

the National Science Foundation

0:00 Intro

0:43 Who was Vera Rubin

4:46 Vera C Rubin Observatory

6:08 Telescope and Camera

8:00 First Light Images

15:00 Rubin’s Science Goals

20:06 Data Management

21:13 Conclusion

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Welcome to the AstroGuy Podcast, your monthly guide to the night sky! In this episode, we’re taking a look at what’s happening in the July 2025 skies.  There’s a lot happening!  Several bright planets are putting on a good show, there’s a decent meteor shower that will be visible, we’ll explore a trio of craters on the moon, learn about several Summer showstopping objects and much more!  

If you enjoy the episode, please subscribe, comment, and share, and leave a review on your favorite podcast platform. Carpe Noctem!

Links:

Feel free to buy us a cup of coffee or two! We really appreciate it! 

https://tinyurl.com/AstroGuyCoffee

Our Facebook group page: https://www.facebook.com/groups/astroguypod

Cranford TV-35: https://www.cranfordnj.org/tv-35

Clark TV-36: https://www.ourclark.com/194/Clark-News---Our-Clark-Media

The July 2025 Episode Guide: https://tinyurl.com/AGGuideJune25

 The Full Episode Guide of DSO’s sorted by Catalog Name: http://tinyurl.com/AGFullGuide

 Our “Astronomy Basics” episode: https://youtu.be/MtUkLVneNYs

 Charles Messier episode: https://youtu.be/3JvAEj29OBo?si=P7E2wCvIP9ZN00ZF

 William Herschel episode: https://youtu.be/1sCFTQf03Wk?si=nkc4_SaeR61Z5BOp

 Affiliate Links

High Point Scientific: https://www.highpointscientific.com/?rfsn=7714880.bb6129

 Amazon: https://amzn.to/4gFQmOG

 Audio Credits:

 Life in Motion 

by Scott Buckley

www.scottbuckley.com.au
 

The Silver Bus 

by TRG Banks

Meanwhile 

by Scott Buckley

www.scottbuckley.com.au
 

Rise 

by Punch Deck

https://soundcloud.com/punch-deck

Music promoted by 

https://www.chosic.com/free-music/all/

 Creative Commons CC BY 4.0

Creative Commons CC BY 3.0

 https://creativecommons.org/licenses/...

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Welcome to the AstroGuy Podcast!, in this episode we’re focusing on one of the most essential topics in astrophotography—total integration time. Have you ever asked yourself why experienced astrophotographers spend hours—or even nights—on a single target? Well, we’ll break down exactly what integration time is, why it plays a vital role in your deep sky images, and how you can maximize your total exposure time for sharper, more detailed results. Whether you're a beginner in astrophotography or looking to take your imaging to the next level, this episode is packed with practical tips, clear explanations, and real-world advice to help you get the most out of every frame. 

In the episode, we’ll cover topics such as: 

• What is total integration time? 

• Why longer exposures make a difference 

• How to shoot across multiple nights 

• Planning for moonlight and light pollution 

• The importance of calibration frames (darks, flats, bias) 

• Avoiding the trap of shooting too many targets in one night 

If you enjoy the episode, please subscribe, comment, and share, and leave a review on your favorite podcast platform. Carpe Noctem! 

Links: 

Feel free to buy us a cup of coffee or two! We really appreciate it! https://tinyurl.com/AstroGuyCoffee 

 Affiliate Links 

High Point Scientific: https://www.highpointscientific.com/?... 

Amazon: https://amzn.to/4gFQmOG 

Music Credits: 

Phase Shift by Scott Buckley 

There Was A Time by Scott Buckley 

www.scottbuckley.com.au/library 

Under the Sun by Keys of Moon 

www.chosic.com 

Music promoted by https://www.chosic.com/free-music/all/ 

Creative Commons CC BY 4.0 https://creativecommons.org/licenses/... 

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Welcome to the AstroGuy Podcast, your monthly guide to the night sky! In this episode, we’re taking a deep dive into the top astronomical events in June 2025, including planetary alignments, lunar features, space exploration updates, and deep sky objects you won’t want to miss.

Whether you're using a telescope, binoculars, or just your eyes, there's plenty to see in the night sky this June!

If you enjoy the episode, please subscribe, comment, and share, and leave a review on your favorite podcast platform. Carpe Noctem!

Links:

Feel free to buy us a cup of coffee or two! We really appreciate it! 

https://tinyurl.com/AstroGuyCoffee

Our Facebook group page: https://www.facebook.com/groups/astroguypod

Cranford TV-35: https://www.cranfordnj.org/tv-35

Clark TV-36: https://www.ourclark.com/194/Clark-News---Our-Clark-Media

The June 2025 Episode Guide: https://tinyurl.com/AGGuideJune25 

 The Full Episode Guide of DSO’s sorted by Catalog Name: http://tinyurl.com/AGFullGuide

Our “Astronomy Basics” episode: https://youtu.be/MtUkLVneNYs

Charles Messier episode: https://youtu.be/3JvAEj29OBo?si=P7E2wCvIP9ZN00ZF

William Herschel episode: https://youtu.be/1sCFTQf03Wk?si=nkc4_SaeR61Z5BOp

Affiliate Links

High Point Scientific: https://www.highpointscientific.com/?rfsn=7714880.bb6129

Amazon: https://amzn.to/4gFQmOG

Audio Credits:

Spring Flowers 

by Keys of Moon

Evening Improvisation 

by Spheriá

Adrift Among Infinite Stars 

by Scott Buckley

www.scottbuckley.com.au

Relaxing Chill Music

ARNOR by Alex-Productions

https://onsound.eu/

Music promoted by https://www.chosic.com/free-music/all/

Creative Commons CC BY 4.0

https://creativecommons.org/licenses/...

Demon Lion Monster Growl Roar 

by Manim8

https://freesound.org/s/469123/

License: Creative Commons 0

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 I've been getting over a bad head cold and I wasn't able to get the episode that I had planned to publish recorded. So, in this brief episode, we get a sneak peak into what's coming up in future episodes. Enjoy! 

Links:

Feel free to buy us a cup of coffee or two! We really appreciate it! 

https://tinyurl.com/AstroGuyCoffee

Our Facebook group page: https://www.facebook.com/groups/astroguypod

Cranford TV-35: https://www.cranfordnj.org/tv-35

Clark TV-36: https://www.ourclark.com/194/Clark-News---Our-Clark-Media

Our “Astronomy Basics” episode: https://youtu.be/MtUkLVneNYs

NOAA Aurora Prediction page: https://www.swpc.noaa.gov/communities/aurora-dashboard-experimental

Affiliate Links

High Point Scientific: https://www.highpointscientific.com/?rfsn=7714880.bb6129

Amazon: https://amzn.to/4gFQmOG

Send us a text

May has arrived, and with it comes warmer evenings, vibrant landscapes in full bloom, and a night sky packed with incredible sights to enjoy. Whether you're setting up a telescope, grabbing a pair of binoculars, or simply stepping outside to look up, there's plenty to see this month.

In this episode, we’ll explore some of the highlights of the May night sky: Which planets are visible this month, when and where to look for them.  We'll spotlight one of the Moon’s most breathtaking and detailed features, examine a meteor shower, a comet and then we’ll take a tour through one of the sky’s most underrated, but rich constellations.

Whether you're an experienced astronomer who’s been observing for years, or you're just starting your journey into the night sky, this episode is packed with tips, background information, and observing advice to help you make the most of your nights under the stars.

Make sure to subscribe to the AstroGuy Podcast for monthly sky tours, deep dives into celestial phenomena, and tips to enhance your observing experience. 

If you enjoy the episode, please subscribe, comment, and share, and leave a review on your favorite podcast platform. Carpe Noctem!

Links:

Feel free to buy us a cup of coffee or two! We really appreciate it! 

https://tinyurl.com/AstroGuyCoffee

Our Facebook group page: https://www.facebook.com/groups/astroguypod

Cranford TV-35: https://www.cranfordnj.org/tv-35

Clark TV-36: https://www.ourclark.com/194/Clark-News---Our-Clark-Media

Our “Astronomy Basics” episode: https://youtu.be/MtUkLVneNYs

 Comet SWAN information: https://theskylive.com/c2025f2-info

May 2025 Episode Guide: https://tinyurl.com/AGMay2025Guide

The Full Episode Guide of DSO’s sorted by Catalog Name: http://tinyurl.com/AGFullGuide

Affiliate Links

High Point Scientific: https://www.highpointscientific.com/?rfsn=7714880.bb6129

Amazon: https://amzn.to/4gFQmOG

Music Credits:

Spring Flowers 

by Keys of Moon

https://soundcloud.com/keysofmoon

Evening Improvisation 

by Spheriá

https://soundcloud.com/spheriamusic

Adrift Among Infinite Stars 

by Scott Buckley

www.scottbuckley.com.au

Relaxing Chill Music

ARNOR by Alex-Productions

https://onsound.eu/

Music promoted by https://www.chosic.com/free-music/all/

Creative Commons CC BY 4.0

https://creativecommons.org/licenses/by/4.0/

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April means it's time for one of the most anticipated annual events in amateur astronomy and this one isn’t in the sky.  On April 5th and 6th the 34th North East Astronomy Forum, aka NEAF was held! In this episode we’ll highlight some of the vendors, talks and more.  If you’ve never been to NEAF this episode lets you know why it’s a must-attend for visual observers, astrophotographers, and gear lovers alike. From top-tier speakers and cutting-edge gear and surprise product launches, we’ll give you a breakdown of NEAF 2025.

If you enjoy the episode, please subscribe, comment, and share, and leave a review on your favorite podcast platform. Carpe Noctem!

Links:

Feel free to buy us a cup of coffee or two! We really appreciate it! 

https://tinyurl.com/AstroGuyCoffee

Our Facebook group page: https://www.facebook.com/groups/astroguypod

Cranford TV-35: https://www.cranfordnj.org/tv-35

Clark TV-36: https://www.ourclark.com/194/Clark-News---Our-Clark-Media

Our “Astronomy Basics” episode: https://youtu.be/MtUkLVneNYs

NEAF Information: https://www.neafexpo.com/

 Affiliate Links 

High Point Scientific: https://www.highpointscientific.com/?rfsn=7714880.bb6129 

Amazon: https://amzn.to/4gFQmOG ZWO Products: https://bit.ly/3Y0ZpC1 

Pegasus Astro Smart Eye Electronic Eyepiece: https://www.highpointscientific.com/pegasus-astro-smarteye 

Astro-Physics: https://www.astro-physics.com 

Celestron Products: https://bit.ly/3RipDfB Nagler Type 7 Eyepieces: https://bit.ly/42dKB5J 

SkyWatcher Heliostar 76 Ha Solar Telescope: https://bit.ly/3G3br7J 

SkyWatcher HAC125DX Mini Astrograph: https://bit.ly/4j7sTqe 

SkyWatcher EQ-AL55i Pro: https://bit.ly/3YmHjL9 

Music Credits: 

Transcendence by Alexander Nakarada | https://creatorchords.com 

The Things That Keep Us Here by Scott Buckley | www.scottbuckley.com.au 

MANTRA by Alex-Productions | https://onsound.eu/ Music promoted by https://www.chosic.com/free-music/all/ 

Creative Commons CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ 

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April is here! And with it comes warmer days, blooming flowers and trees along with crisp evening skies.  This month the planets are still putting on a nice show, and we’ll explore one of the most famous areas on the Moon, learn about the Lyrid Meteor Shower, get a space mission update and explore some of the best that Canes Venatici has for us to observe on April evenings.   

If you enjoy the episode, please subscribe, comment, and share, and leave a review on your favorite podcast platform. Carpe Noctem!

Links:

Feel free to buy us a cup of coffee or two! We really appreciate it! 

https://tinyurl.com/AstroGuyCoffee

Our Facebook group page: https://www.facebook.com/groups/astroguypod

Cranford TV-35: https://www.cranfordnj.org/tv-35

Clark TV-36: https://www.ourclark.com/194/Clark-News---Our-Clark-Media

The April 2025 Episode Guide: https://tinyurl.com/April25EpGuide

 The Full Episode Guide of DSO’s sorted by Catalog Name: http://tinyurl.com/AGFullGuide

Our “Astronomy Basics” episode: https://youtu.be/MtUkLVneNYs

Charles Messier episode: https://youtu.be/3JvAEj29OBo?si=P7E2wCvIP9ZN00ZF

William Herschel episode: https://youtu.be/1sCFTQf03Wk?si=nkc4_SaeR61Z5BOp

March 13-14, 2025 Total Lunar Eclipse live stream: https://www.youtube.com/live/oo797dcWNCU?si=7dw5HseQhEr9syD3

Affiliate Links

High Point Scientific: https://www.highpointscientific.com/?rfsn=7714880.bb6129

 Amazon: https://amzn.to/4gFQmOG

Credits

Images:
 Wayne Zuhl

John Richards

ESA/NASA

The Hubble Heritage Team (STScI/AURA)

R. Gendler 

G. Bacon 

Juan Iacruz

John Vickery

Jim Matthes

Adam Block

Jordan Cochran

Bruce Waters

Chris Callie

Jianfeng Dai

Bruce McClure

John Hall

EarthSky.org

NASA LRO

Sloan Digital Sky Survey

Daniel Nobre

Creative Commons CC BY 4.0

https://creativecommons.org/licenses/by/4.0/

Music Credits:

Phase Shift by Scott Buckley 

Voice of Earth

Last And First Light by Scott Buckley

There Was A Time by Scott Buckley

www.scottbuckley.com.au

Music promoted by https://www.chosic.com/free-music/all/

Creative Commons CC BY 4.0

https://creativecommons.org/licenses/by/4.0/