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1 vote

0 answers

38 views

iphone & remote control tripod & stellarium

Bruce Simonson

263

asked Nov 26 at 21:32

0 votes

1 answer

32 views

What is the horizon-ecliptic angle formula?

Greg Miller

4,044

answered Nov 25 at 15:15

9 votes

0 answers

220 views

+200

If I can't unscramble an egg, how do Astronomers unscramble views gravitationally lensed by complex mass distributions?

uhoh

30.5k

modified Nov 25 at 6:48

4 votes

1 answer

57 views

Calculating background photons from flux levels

uhoh

30.5k

answered Nov 21 at 8:46

3 votes

1 answer

103 views

How does one convert between Modified Julian Date (MJD) and a standard (mm/dd/yr, hr:mm:ss)

Greg Miller

4,044

answered Nov 20 at 18:50

10 votes

1 answer

2k views

How would a person know if a planet is orbiting a binary star?

ProfRob

124k

modified Nov 17 at 13:57

6 votes

1 answer

256 views

Natural line width from absorption lines

ProfRob

124k

modified Nov 16 at 7:29

11 votes

1 answer

2k views

What is the mathematical condition for the statement: "gravitationally bound"?

James K

95.9k

answered Nov 13 at 13:35

5 votes

1 answer

107 views

How do astronomical spectrometers measure spectra from single stars separately, without contamination from all of the nearby stars?

ProfRob

124k

modified Nov 12 at 7:52

1 vote

0 answers

64 views

Has "crescent-twinkling" even been demonstrated or at least calculated/predicted? Any "twinkleometer" data for Venus out there?

uhoh

30.5k

modified Nov 12 at 0:00

1 vote

0 answers

23 views

Different types of line broadening in stellar and galactic spectra

trynerror

573

asked Nov 9 at 11:44

6 votes

3 answers

20k views

Why does Venus flicker?

uhoh

30.5k

answered Nov 7 at 3:50

4 votes

1 answer

87 views

"To date we have covered 624 square degrees of sky near to and interior to the orbit of Venus" meaning wrt Asteroid survey Interior to Earth and Venus

asdfex

492

modified Nov 6 at 9:33

6 votes

1 answer

785 views

How does the James Webb Space Telescope achieve a focal length of 131.4m?

James K

95.9k

modified Nov 6 at 7:15

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iphone & remote control tripod & stellarium

What is the horizon-ecliptic angle formula?

If I can't unscramble an egg, how do Astronomers unscramble views gravitationally lensed by complex mass distributions?

Calculating background photons from flux levels

How does one convert between Modified Julian Date (MJD) and a standard (mm/dd/yr, hr:mm:ss)

How would a person know if a planet is orbiting a binary star?

Natural line width from absorption lines

What is the mathematical condition for the statement: "gravitationally bound"?

How do astronomical spectrometers measure spectra from single stars separately, without contamination from all of the nearby stars?

Has "crescent-twinkling" even been demonstrated or at least calculated/predicted? Any "twinkleometer" data for Venus out there?

Different types of line broadening in stellar and galactic spectra

Why does Venus flicker?

"To date we have covered 624 square degrees of sky near to and interior to the orbit of Venus" meaning wrt Asteroid survey Interior to Earth and Venus

How does the James Webb Space Telescope achieve a focal length of 131.4m?

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