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seen Nov 3 at 14:46

Oct
19
awarded  Yearling
Apr
12
awarded  Custodian
Apr
12
reviewed Satisfactory Do solstices and equinoxes shift over time?
Apr
12
reviewed Excellent Could black holes be creators of dark matter?
Jan
4
awarded  Enlightened
Jan
4
awarded  Nice Answer
Nov
20
comment How would I measure that I'm at a pole?
@User58220 That is true, however measuring its angle above the horizon and accounting for date will provide the latitude which will tell you if you are at the pole or not.
Nov
20
comment How would I measure that I'm at a pole?
I meant just a long enough time so that an exposure will capture the arc in the star trails.
Nov
20
revised How would I measure that I'm at a pole?
added 151 characters in body
Nov
20
answered How would I measure that I'm at a pole?
Nov
19
revised How does a Bahtinov mask work?
added 626 characters in body
Nov
18
answered How does a Bahtinov mask work?
Nov
15
answered Can the supernova remnant SN 1572 be observed by amateur astronomers?
Nov
7
answered Is there a upper limit to the number of planets orbiting a star?
Nov
5
answered How do I calculate the inclination of an object with an amateur telescope?
Nov
5
comment How do I calculate the inclination of an object with an amateur telescope?
This gives the inclination compared to the celestial equator and does not give the inclination per the ecliptic.
Oct
31
awarded  Editor
Oct
31
revised What reason is there to doubt the existence of the hypothesised planet Tyche in the far distant solar system?
added 249 characters in body
Oct
31
answered What reason is there to doubt the existence of the hypothesised planet Tyche in the far distant solar system?
Oct
30
answered How far is the Earth/Sun above/below the galactic plane, and is it heading toward/away from it?