Spherical Astronomy - Part 1
1.2 هزار بار بازدید -
4 سال پیش
-
In this BAS Spherical Astronomy
In this BAS Spherical Astronomy Series, listen to Dr. Akarsh, take us through the mathematics involved to calculate the position of a Star or a DSO to decent precision from its Catalog co-ordinates.
References :
1. Lots of Wikipedia articles (many of them are very well written and explanatory; I recommend looking at them for concepts and at Meeus for calculations.
2. "Astronomical Algorithms" by Jean Meeus
Other references on the subject that are not used:
3. Explanatory supplement to the astronomical almanac [An older version of this available on the Internet Archive: https://archive.org/details/131123Exp...]
Dr. B. S. Shylaja used to give an Astrophysics 101 course to REAP students at the Jawaharlal Nehru Planetarium, Bengaluru.
The slides are available here:
https://asimha.net/Spherical_Astronom...
https://asimha.net/Spherical_Astronom...
Chapters:
00:00 Introduction to the two-part series and the goals
04:23 Outline for Part 1 (Introductory topics)
10:21 Units for angle measurement in astronomy, unit conversions
19:30 Calendars (Gregorian and Julian)
23:52 Time measurement (Mean Solar Time, Dynamical Time, UTC, Timezones, Local Mean Time)
36:25 Daylight Saving Time
38:55 Equation of Time (very brief discussion)
40:18 Celestial Sphere, Celestial Poles, Celestial Equator
45:20 Spherical coordinate systems, general discussion
48:45 Geodetic Coordinates (latitude and longitude)
49:38 Great Circles on a Sphere, properties of great circles, geodesics
52:48 Horizon
58:05 Horizontal Coordinates (altitude and azimuth) [Introduction to notation used through rest of the talk]
1:08:32 Further discussion about coordinate singularity of spherical coordinates (eg: azimuth at zenith)
1:12:52 Establishing convention of Alt/Az coordinates for this talk
1:13:35 Atmospheric Refraction and Airmass
1:28:18 Ecliptic, Equinoxes
1:37:28 Equatorial Coordinates (Right Ascension and Declination)
1:46:23 Local Sidereal Time, the “Sidereal Clock”, the difference between a sidereal day and a solar day
1:54:40 Local Hour Angle
1:57:00 Diurnal motion of the stars in the sky
References :
1. Lots of Wikipedia articles (many of them are very well written and explanatory; I recommend looking at them for concepts and at Meeus for calculations.
2. "Astronomical Algorithms" by Jean Meeus
Other references on the subject that are not used:
3. Explanatory supplement to the astronomical almanac [An older version of this available on the Internet Archive: https://archive.org/details/131123Exp...]
Dr. B. S. Shylaja used to give an Astrophysics 101 course to REAP students at the Jawaharlal Nehru Planetarium, Bengaluru.
The slides are available here:
https://asimha.net/Spherical_Astronom...
https://asimha.net/Spherical_Astronom...
Chapters:
00:00 Introduction to the two-part series and the goals
04:23 Outline for Part 1 (Introductory topics)
10:21 Units for angle measurement in astronomy, unit conversions
19:30 Calendars (Gregorian and Julian)
23:52 Time measurement (Mean Solar Time, Dynamical Time, UTC, Timezones, Local Mean Time)
36:25 Daylight Saving Time
38:55 Equation of Time (very brief discussion)
40:18 Celestial Sphere, Celestial Poles, Celestial Equator
45:20 Spherical coordinate systems, general discussion
48:45 Geodetic Coordinates (latitude and longitude)
49:38 Great Circles on a Sphere, properties of great circles, geodesics
52:48 Horizon
58:05 Horizontal Coordinates (altitude and azimuth) [Introduction to notation used through rest of the talk]
1:08:32 Further discussion about coordinate singularity of spherical coordinates (eg: azimuth at zenith)
1:12:52 Establishing convention of Alt/Az coordinates for this talk
1:13:35 Atmospheric Refraction and Airmass
1:28:18 Ecliptic, Equinoxes
1:37:28 Equatorial Coordinates (Right Ascension and Declination)
1:46:23 Local Sidereal Time, the “Sidereal Clock”, the difference between a sidereal day and a solar day
1:54:40 Local Hour Angle
1:57:00 Diurnal motion of the stars in the sky
4 سال پیش
در تاریخ 1399/05/05 منتشر شده
است.
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