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 59688	8.9628	12h 14m 26s	-13° 00’ 49”
Star	HIP 59569	8.2598	12h 12m 56s	-12° 47’ 25”
Star	HIP 59068	6.747	12h 06m 47s	-12° 14’ 27”
Star	HIP 59410	8.0498	12h 11m 14s	-12° 05’ 49”
Star	HIP 59272	6.7032	12h 09m 28s	-11° 51’ 23”
Star	HIP 59343	8.4748	12h 10m 24s	-14° 10’ 44”
Star	HIP 59264	7.862	12h 09m 22s	-12° 56’ 24”
Star	HIP 59299	8.2956	12h 09m 58s	-13° 26’ 07”
Star	HIP 59013	7.8462	12h 06m 00s	-13° 19’ 00”
Galaxy	NGC 4177	14.0	12h 12m 41s	-14° 00’ 51”
Galaxy	NGC 4114	13.5	12h 07m 12s	-14° 11’ 07”

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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