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 47539	0	09h 41m 31s	-06° 23’ 36”
Star	HIP 47478	7.7024	09h 40m 41s	-06° 53’ 20”
Star	HIP 48080	7.4658	09h 48m 06s	-05° 54’ 12”
Star	HIP 47561	8.3338	09h 41m 49s	-06° 45’ 40”
Star	HIP 47687	8.106	09h 43m 24s	-06° 50’ 03”
Star	HIP 47977	8.4986	09h 46m 45s	-07° 07’ 35”
Star	HIP 47825	8.0262	09h 44m 53s	-06° 42’ 12”
Star	HIP 47757	7.577	09h 44m 09s	-06° 10’ 50”
Star	HIP 47900	8.7912	09h 45m 44s	-06° 32’ 50”
Galaxy	PGC 27833	13.5	09h 43m 36s	-05° 54’ 46”
Galaxy	PGC 27825	14.0	09h 43m 28s	-05° 21’ 55”

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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