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 50267	0	10h 15m 50s	-11° 47’ 46”
Star	HIP 50341	0	10h 16m 46s	-11° 57’ 37”
Star	HIP 49802	6.2122	10h 09m 56s	-12° 05’ 42”
Star	HIP 49701	6.5364	10h 08m 45s	-10° 53’ 05”
Star	HIP 49774	7.3044	10h 09m 38s	-11° 53’ 42”
Star	HIP 50534	7.9778	10h 19m 16s	-11° 22’ 42”
Star	HIP 49989	8.3162	10h 12m 19s	-10° 19’ 17”
Star	HIP 50345	8.8652	10h 16m 47s	-10° 46’ 22”
Star	HIP 49985	8.3674	10h 12m 17s	-11° 08’ 06”
Star	HIP 50422	7.8584	10h 17m 43s	-12° 04’ 43”
Star	HIP 50515	7.772	10h 19m 00s	-11° 11’ 05”
Star	HIP 50157	8.5562	10h 14m 19s	-12° 35’ 04”
Star	HIP 49841	3.5058	10h 10m 35s	-12° 21’ 13”
Star	HIP 50292	5.956	10h 16m 09s	-11° 12’ 12”
Star	HIP 49674	8.0532	10h 08m 26s	-11° 06’ 55”
Star	HIP 50022	8.6544	10h 12m 45s	-12° 01’ 35”
Star	HIP 50250	7.918	10h 15m 38s	-11° 11’ 17”
Galaxy	NGC 3145	12.5	10h 10m 09s	-12° 26’ 02”

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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