21P/Giacobini-Zinner live position and data

This page shows Comet 21P/Giacobini-Zinner location and other relevant astronomical data in real time. The celestial coordinates, magnitude, distances and speed are updated in real time and are computed using high quality data sets provided by the JPL Horizons ephemeris service (see acknowledgements for details). The sky map shown below represents a rectangular portion of the sky 60x40 arcminutes wide. By comparison the diameter of the full Moon is about 30 arcmins, so the full horizontal extent of the map is approximately 2 full Moons wide. Depending on the device you are using, the map can be dragged horizondally or vertically using the mouse or touchscreen. The deep sky image in the background is provided by the Digitized Sky Survey (acknowledgements).

Current close conjunctions

List of bright objects (stars brighter than magnitude 9.0 and galaxies brighter than magmitude 14.0) close to Comet 21P/Giacobini-Zinner (less than 1.5 degrees):

Type	Name	Magnitude	Ar	Dec
Star	HIP 52943	2.9818	10h 49m 37s	-16° 11’ 38”
Star	HIP 53156	8.72	10h 52m 31s	-18° 38’ 12”
Star	HIP 53040	8.6356	10h 51m 09s	-17° 29’ 11”
Star	HIP 53429	7.4808	10h 55m 45s	-16° 22’ 05”
Star	HIP 53037	6.562	10h 51m 06s	-18° 19’ 56”
Star	HIP 53172	7.7266	10h 52m 39s	-17° 01’ 47”
Star	HIP 53703	7.584	10h 59m 16s	-17° 37’ 23”
Star	HIP 52752	8.9198	10h 47m 10s	-17° 25’ 26”
Star	HIP 53518	8.5194	10h 56m 53s	-18° 29’ 32”
Star	HIP 53084	8.6724	10h 51m 36s	-16° 24’ 15”
Star	HIP 53178	7.3534	10h 52m 40s	-16° 35’ 18”
Star	HIP 53206	7.075	10h 52m 56s	-17° 16’ 38”
Star	HIP 53509	7.844	10h 56m 45s	-17° 27’ 06”
Galaxy	PGC 32573	13.8	10h 51m 36s	-17° 07’ 17”
Galaxy	NGC 3456	13.2	10h 54m 03s	-16° 01’ 41”

Additional resources

Additional Resources about Comet 21P/Giacobini-Zinner

• 15 Days Ephemerides
• Interactive Sky Map (Planetarium)
• Rise & Set Times
• Distance from Earth
• Light Curve
• Orbital Elements

Astronomy databases

This online sky chart is created using the following astronomy databases and services:

1. The Digitized Sky Survey, a photographic survey of the whole sky created using images from different telescopes, including the Oschin Schmidt Telescope on Palomar Mountain
2. The Hipparcos Star Catalogue, containing more than 100.000 bright stars
3. The PGC 2003 Catalogue, containing information about 1 million galaxies
4. The GSC 2.3 Catalogue, containing information about more than 2 billion stars and galaxies

Please see the acknowledgements section.

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