User Mike G

20

votes

1

answer

602

views

What are Kepler's laws (as he wrote them)?

Nov 15 at 20:12 Connor Garcia♦ 9,313

18

votes

3

answers

246

views

Why are asteroids with zero orbital inclination rare?

asteroids orbital-mechanics orbital-resonance

Dec 21 at 17:13 ProfRob 98k

7

votes

1

answer

219

views

Saturn's tropical year?

planet orbit orbital-elements

Jun 14 '18 at 22:02 PaulS 221

7

votes

1

answer

1k

views

Effect of the obliquity of the ecliptic / tilt of the Earth on the equation of time

the-sun earth obliquity time

Mar 23 '18 at 19:34 Mike G 15.3k

4

votes

0

answers

88

views

Gravitational Slingshot

orbit newtonian-gravity

Jan 15 '20 at 22:14 DarkRunner 141

4

votes

1

answer

114

views

Peculiar Amplitude of Earth's Orbit in Z Axis

orbit solar-system n-body-simulations

Jan 31 '20 at 22:58 Mike G 15.3k

4

votes

0

answers

100

views

How to design a static heliostat?

the-sun tracker

Mar 26 at 15:44 uhoh 28.5k

3

votes

3

answers

112

views

How can you determine the date using nothing but a star chart from the day and the time?

star time positional-astronomy star-maps

Jun 6 at 9:01 Community♦ 1

3

votes

1

answer

55

views

Is this how stars’ right ascensions correlate to planets’ longitudes on a 2d map?

planet solar-system coordinate right-ascension star-maps

Jun 2 at 19:49 Pierre Paquette 3,467

3

votes

1

answer

276

views

Spacing (2422 days) between solar eclipses - unrelated saros numbers

solar-eclipse

Apr 7 '18 at 1:42 Mike G 15.3k

2

votes

1

answer

164

views

How to calculate local position, knowing the RA and Dec of the center of an image, RPY of the camera, and precise time?

Aug 4 at 22:33 stretch 416

2

votes

1

answer

1k

views

How to construct a sky map

star amateur-observing positional-astronomy python

Jul 8 '18 at 19:14 lly 113

2

votes

0

answers

177

views

Code for getting the pixel coordinates of an object with known RA DEC not working

coordinate

Sep 4 '18 at 11:40 observer 21

2

votes

0

answers

87

views

2D Distorted Star Map for Pasting on Sphere Surface

star-maps

Oct 7 '18 at 14:50 Glorfindel 3,565

2

votes

0

answers

51

views

Keplerian Elements for the Moon and Earth around their Barycenter

the-moon earth natural-satellites kepler earths-orbit

Jun 12 '20 at 21:01 Jee 235

2

votes

2

answers

101

views

Does the Sun and Moon basically appear to “move on the sky” identically regardless of location and date?

the-sun the-moon earth night-sky

Oct 17 at 13:42 David Hammen 23k

2

votes

0

answers

32

views

How accurate is the “Equation of time” (mean time to actual solar time)? And how much can it vary from the average?

time

Dec 21 at 19:51 George Lee 21

2

votes

2

answers

86

views

Solar Azimuth angle Derivation

coordinate declination ecliptic azimuth horizon

Mar 15 at 6:41 slowerthanstopped 545

1

vote

2

answers

197

views

How to calculate the period of a lunar mansion?

the-moon

Feb 22 at 21:21 Mike G 15.3k

1

vote

1

answer

94

views

Halley's Comet duration of visibility

halleys-comet

Feb 14 at 6:16 planetmaker 6,633

1

vote

1

answer

61

views

Understanding date of astronomical events

equinox

Dec 20 at 21:23 User123 1,848

1

vote

0

answers

54

views

When will 2002 MS4 be named?

naming trans-neptunian-object iau

2d ago John 323

1

vote

1

answer

76

views

Relation between phase and magnitude

moon-phases apparent-magnitude magnitude

Jun 21 '19 at 20:21 earnric 219

1

vote

1

answer

189

views

How to calculate the orientation of planets at current epoch

planet solar-system rotation

May 10 at 14:56 Mike G 15.3k

1

vote

1

answer

1k

views

How to calculate declination of Moon?

the-moon fundamental-astronomy declination

Mar 11 '19 at 12:17 User123 1,848

1

vote

2

answers

481

views

Why oddly shaped constellation areas?

constellations

Jun 1 '18 at 18:43 Mike G 15.3k

0

votes

0

answers

54

views

How does the Astronomical Twilight depend on the night length or the day length?

observational-astronomy night-sky twilight

May 10 '20 at 16:14 geek11 1

0

votes

0

answers

146

views

How can one determine the declination range of stars visible for a certain amount of time above a specific airmass at a certain location?

observational-astronomy amateur-observing coordinate

Jan 1 '20 at 2:09 uhoh 28.5k

-2

votes

2

answers

433

views

Based on what a month determined as of a certain zodiac constellation?

history zodiac

Apr 9 '20 at 7:20 Mike G 15.3k

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What are Kepler's laws (as he wrote them)?

Why are asteroids with zero orbital inclination rare?

Saturn's tropical year?

Effect of the obliquity of the ecliptic / tilt of the Earth on the equation of time

Gravitational Slingshot

Peculiar Amplitude of Earth's Orbit in Z Axis

How to design a static heliostat?

How can you determine the date using nothing but a star chart from the day and the time?

Is this how stars’ right ascensions correlate to planets’ longitudes on a 2d map?

Spacing (2422 days) between solar eclipses - unrelated saros numbers

How to calculate local position, knowing the RA and Dec of the center of an image, RPY of the camera, and precise time?

How to construct a sky map

Code for getting the pixel coordinates of an object with known RA DEC not working

2D Distorted Star Map for Pasting on Sphere Surface

Keplerian Elements for the Moon and Earth around their Barycenter

Does the Sun and Moon basically appear to “move on the sky” identically regardless of location and date?

How accurate is the “Equation of time” (mean time to actual solar time)? And how much can it vary from the average?

Solar Azimuth angle Derivation

How to calculate the period of a lunar mansion?

Halley's Comet duration of visibility

Understanding date of astronomical events

When will 2002 MS4 be named?

Relation between phase and magnitude

How to calculate the orientation of planets at current epoch

How to calculate declination of Moon?

Why oddly shaped constellation areas?

How does the Astronomical Twilight depend on the night length or the day length?

How can one determine the declination range of stars visible for a certain amount of time above a specific airmass at a certain location?

Based on what a month determined as of a certain zodiac constellation?