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The Language of Astronomy with Brian Fulda

In this Space Junk Podcast episode, Tony Darnell from DeepAstronomy is joined by Brian Fulda from the OPT Team to define common words used in the astronomy language.

Whether you're a beginner or advanced astronomer, you might find out something you didn't know before, so get comfortable and pull out your favorite notetaking tool!

Check out the timestamps below for an overview of what words are defined.

About Brian Fulda 

astronomy language with brian fulda


Brian is an instructor at  OPT University, a daily class offered to the OPT staff. These educational sessions help the OPT team answer questions many astronomers have and help OPT continue to provide excellent customer service.

Also known as absorbingphotons on Instagram, Brian is a notable astrophotographer in the hobby with a stunning collection of images of the night sky. 

Time Stamps for The Language of Astronomy

3:09 -DSO (deep space object) vs. solar system/planetary objects

5:51 -What is a nebula?

8:32 -Star clusters

9:18 -Double stars

10:35 -Constellation vs. asterism 

13:31 -What is a conjunction?

14:18 - Occultation

15:15 -What is a transit?

17:30 -What is an eclipse?

18:54 -What is the difference between a solar eclipse and lunar eclipse? 

20:37 - What is a celestial sphere? 

23:35 - What is a celestial equator? 

24:04 - What is a celestial pole? 

25:40 - If you pointed a camera at the north star - Polaris, what would you see?

27:16 - Degrees, coordinates, arc seconds - what are they?

29:15 - What is a zenith? 

29:51 - What is the ecliptic?

32:23 - What is the meridian? 

33:46 - Light years, astronomical unit, parsec, megaparsec - what are they?

36:43 - Telescope mount and eyepiece 

39:08 - Aperture 

39:52 - Focal length 

40:26 - Focal ratio 

41:58 - Advantages and disadvantages of slow vs. fast telescopes 

46:03 - Magnification - What is it? How to calculate it?

51:12 -Seeing 

55:38 - Telescope types 

57:05 - Doublets, triplets, quadruplets?

58:44 - Alt-Az vs. EQ mounts

1:01:09 - Barlows& tele-extenders 

What is your favorite space object? Let us know in the comments below!

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