coordinate - Local Sidereal Time - Astronomy Stack Exchange
It's really close, but I think 0.9972695663290843 is the ratio between the solar and sidereal day. I had thought that the 100.46 was decimal days from the start of a year until the vernal equinox, …
Difference between zone time and local sidereal time?
Apr 10, 2019 · In other words, the star time runs almost 4 minutes fast each day. Therefore, there are two key differences between sidereal time and the clock time: Sidereal time is different at …
Right ascension and sidereal time difference
May 5, 2020 · The sidereal time is just the RA that is on the meridian. Because of the rotation of the sky, the sidereal time increases by approximately 15 degrees (or 1 hour of RA) every hour …
Understanding the difference between local time and local …
Jun 25, 2021 · I am currently attempting to understand different systems of telling the time: particularly, distinguishing local time (LT) from local sidereal time (LST). I understand that they …
Calculating the time a star is at my local meridian based on its …
Feb 10, 2021 · The sun's position is irrelevant to when a star will be in its meridian; the Sun's coordinates in the RA/dec grid does change over the year. A star's position is fixed in that …
I'm struggling to understand this Local Sidereal Time Formula can ...
Feb 23, 2025 · Sidereal time is non-linear, and will have higher powers of time. This looks more like the expression for the Earth Rotation Angle, a similar concept, but designed to work with …
Rising sign/constellation at a given time and place
Feb 1, 2024 · The local sidereal time can be calculated by adding the observer's longitude to the Greenwich sidereal time (east longitude positive, west longitude negative). Of course, for this …
Local sidereal time interpretation - Astronomy Stack Exchange
What I observe is that the local sidereal time is advancing by 0.06/07 hours per day for the same time.Like 21.88 Hours for current date and time , 21.94 Hours for the same time next day , …
How to convert sidereal time to local time? - Astronomy Stack …
How does the ancient text reference the time? Is it by (a) the sidereal time, (b) the constellation on the meridian and you converted that to 13.3 hour, or (c) by a specific date and time and you …
Hour angle to Right Ascension correct when the longitude is positive
Jul 20, 2024 · To find the Local Sidereal Time I use the user's longitude and GST to get it: Convert GST to decimal hours. Convert the geographical longitude in degrees to its equivalent …