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 13828	6.5188	02h 57m 58s	+64° 25’ 08”
Star	HIP 13548	8.9894	02h 54m 29s	+62° 52’ 33”
Star	HIP 13708	6.8848	02h 56m 29s	+62° 36’ 34”
Star	HIP 14316	8.5046	03h 04m 39s	+63° 45’ 46”
Star	HIP 13608	7.6904	02h 55m 20s	+64° 09’ 26”
Star	HIP 13125	8.3776	02h 48m 50s	+63° 16’ 58”
Star	HIP 13394	6.732	02h 52m 22s	+63° 24’ 36”
Star	HIP 13041	8.4966	02h 47m 35s	+64° 41’ 07”
Star	HIP 13487	8.4688	02h 53m 40s	+64° 27’ 07”
Star	HIP 14154	8.2678	03h 02m 28s	+64° 22’ 58”
Star	HIP 13700	5.9926	02h 56m 24s	+64° 19’ 56”
Star	HIP 13437	7.6036	02h 52m 58s	+64° 40’ 12”
Star	HIP 13471	7.9232	02h 53m 30s	+63° 38’ 46”
Star	HIP 13208	7.397	02h 49m 58s	+64° 37’ 50”

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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