Sky Map Applet

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Sky Map Applet
showing the bright stars and planets (Mercury, Venus, Mars, Jupiter, Saturn)

Greatest elongations of Mercury and Venus

Applet: Planetary Motion

This starmap follows the usual starmap convention: east is on the screen left and west the right - the opposite from paper maps of land, because starmaps are meant to be visualized as if held overhead.



Enter the coordinates (decimal degrees) for the latitude, and for the longitude, and press "Apply input":
northern latitudes positive, southern negative,
longitudes east of Greenwich positive, west of Greenwich negative.

Select the time zone.

You may use the keys m, w, d, h, n to increase the month, week, day, hour, or minute,

or shift key and m, w, d, h, n to decrease the month, week, day, hour, or minute.

Use the key l or L to change the latitude

Click into the applet area first !

The first items of the latitude and longitude menu are those of the applet parameter values, which may be edited by Text Edit.

Using the timezone parameter value "auto", the applet will use the system clock's time information. Otherwise insert the time zone offset, e.g.
VALUE="-8" for California, USA.

Visual magnitude of the stars to be shown in the applet.

Equ. Colure:
The equinoctial colure is a grat circle on the celestial sphere passing through the celestial poles and the equinoxes.

The Moon, and its fraction of disc illuminated.
(+) waxing Moon
(-) waning Moon


The direction of the Sun and the Moon
(below horizon)

Click a star to get the name, magnitude, right ascension, and declination.

The local mean sidereal time ("star time") at a given location is the hour angle of the vernal equinox (aries) point, or the right ascension of the transiting stars (stars on your local celestial meridian).


Examples:

1) At LMST 00:00 the aries point is on the local celestial meridian.

2) At local mean sidereal time 19:51 the star Altair (RA 19.84h) is on the local celestial meridian:

The total solar eclipse of 2006, March 29 as seen from Turkey (Antalya, about 37° N, 31° E):

Web Links

Verzeichnis der Sternbilder (astroinfo)

The 88 modern Constellations (wikipedia)

Constallations, Stars (Absolute Astronomy)

Table of Constellations (Seds)

List of 100 brightest stars (wikipedia)

The Brightest Stars, up to 2.5 mag (Munic Astro Archive)

The Brightest Stars In The Sky, Sorting Order: Constellations (Munic Astro Archive)

The Bright Star Catalogue

The main stars of the constellations

The 150 Stars in the Hipparcos Catalogue with Highest Apparent Magnitude (ESA)

The Brightest Stars (Observers Handbook)
The 314 stars brighter than apparent magnitude 3.55

The Brightest Stars

The World Clock (Current local times around the world)

Compute Local Apparent Sidereal Time (USNO)

Total Solar Eclipse of 2006 March 29 (NASA Eclipse Home Page)

Total Solar Eclipse of 2006 March 29: Table of Contents

Adalbert Sifter:

Die Sonnenfinsternis / Ein Gang durch die Katakomben,
1 Audio-CD

Text: Adalbert Stifter: Die Sonnenfinsternis am 8. Juli 1842

Updated: 2023, Oct 03

This starmap follows the usual starmap convention: east is on the screen left and west the right - the opposite from paper maps of land, because starmaps are meant to be visualized as if held overhead.
	Enter the coordinates (decimal degrees) for the latitude, and for the longitude, and press "Apply input": northern latitudes positive, southern negative, longitudes east of Greenwich positive, west of Greenwich negative.
	Select the time zone.
	You may use the keys m, w, d, h, n to increase the month, week, day, hour, or minute, or shift key and m, w, d, h, n to decrease the month, week, day, hour, or minute. Use the key l or L to change the latitude Click into the applet area first !
The first items of the latitude and longitude menu are those of the applet parameter values, which may be edited by Text Edit. Using the timezone parameter value "auto", the applet will use the system clock's time information. Otherwise insert the time zone offset, e.g. `VALUE="-8"` for California, USA.
	Visual magnitude of the stars to be shown in the applet.
	Equ. Colure: The equinoctial colure is a grat circle on the celestial sphere passing through the celestial poles and the equinoxes.
	The Moon, and its fraction of disc illuminated. (+) waxing Moon (-) waning Moon
	The direction of the Sun and the Moon (below horizon)

	Click a star to get the name, magnitude, right ascension, and declination.
	The local mean sidereal time ("star time") at a given location is the hour angle of the vernal equinox (aries) point, or the right ascension of the transiting stars (stars on your local celestial meridian).
	Examples: 1) At LMST 00:00 the aries point is on the local celestial meridian. 2) At local mean sidereal time 19:51 the star Altair (RA 19.84h) is on the local celestial meridian: