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 34516	8.5308	07h 09m 07s	-07° 46’ 20”
Star	HIP 34862	7.4454	07h 12m 49s	-07° 08’ 57”
Star	HIP 34156	8.5878	07h 04m 58s	-05° 47’ 57”
Star	HIP 34590	7.8372	07h 09m 53s	-05° 44’ 08”
Star	HIP 34326	7.6724	07h 06m 56s	-07° 33’ 26”
Star	HIP 34649	7.36	07h 10m 33s	-07° 52’ 15”
Star	HIP 34508	8.1552	07h 09m 01s	-07° 56’ 20”
Star	HIP 34330	7.2872	07h 06m 59s	-05° 28’ 17”
Star	HIP 34908	8.4434	07h 13m 21s	-06° 26’ 04”
Star	HIP 34027	8.0026	07h 03m 35s	-06° 55’ 07”
Star	HIP 34772	8.539	07h 11m 54s	-06° 33’ 43”
Star	HIP 34526	8.6296	07h 09m 14s	-07° 04’ 13”
Star	HIP 33955	8.1716	07h 02m 43s	-06° 47’ 54”
Star	HIP 34606	8.699	07h 10m 06s	-07° 13’ 26”
Star	HIP 34559	6.935	07h 09m 32s	-06° 02’ 38”
Star	HIP 33894	6.6696	07h 02m 07s	-06° 01’ 20”
Galaxy	PGC 20274	13.2	07h 09m 33s	-05° 25’ 54”

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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