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 57625	0	11h 48m 56s	-10° 26’ 28”
Star	HIP 57758	8.1562	11h 50m 42s	-09° 56’ 50”
Star	HIP 57800	7.9926	11h 51m 06s	-11° 12’ 28”
Star	HIP 57585	7.5278	11h 48m 17s	-08° 52’ 27”
Star	HIP 57631	7.2914	11h 49m 03s	-09° 07’ 04”
Star	HIP 57763	7.5838	11h 50m 44s	-09° 23’ 50”
Star	HIP 57482	8.769	11h 46m 58s	-10° 56’ 56”
Star	HIP 57587	6.1966	11h 48m 23s	-10° 18’ 46”
Star	HIP 57218	8.3308	11h 43m 57s	-10° 37’ 39”
Star	HIP 57599	7.7744	11h 48m 30s	-09° 22’ 33”
Star	HIP 57229	8.843	11h 44m 03s	-10° 46’ 21”
Star	HIP 57790	7.6188	11h 51m 02s	-09° 16’ 23”
Star	HIP 57816	8.3206	11h 51m 20s	-09° 58’ 36”
Star	HIP 57472	8.9614	11h 46m 52s	-10° 16’ 02”
Star	HIP 57213	6.7704	11h 43m 55s	-09° 07’ 56”
Star	HIP 57712	8.7874	11h 50m 07s	-11° 02’ 43”
Galaxy	NGC 3892	12.4	11h 48m 01s	-10° 57’ 42”
Galaxy	PGC 36643	13.5	11h 45m 26s	-10° 06’ 10”
Galaxy	NGC 3865	13.0	11h 44m 51s	-09° 13’ 59”
Galaxy	NGC 3866	14.0	11h 45m 16s	-09° 20’ 20”
Galaxy	NGC 3905	13.4	11h 49m 04s	-09° 43’ 45”

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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