17P/Holmes live position and data

This page shows Comet 17P/Holmes 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 17P/Holmes (less than 1.5 degrees):

Type	Name	Magnitude	Ar	Dec
Star	HIP 55600	7.857	11h 23m 23s	-12° 05’ 57”
Star	HIP 55745	8.7018	11h 25m 17s	-11° 57’ 35”
Star	HIP 55752	8.0962	11h 25m 26s	-12° 10’ 01”
Star	HIP 55874	5.8864	11h 27m 09s	-12° 21’ 24”
Star	HIP 55900	7.346	11h 27m 30s	-12° 26’ 08”
Star	HIP 55910	8.0834	11h 27m 36s	-13° 06’ 20”
Star	HIP 55942	8.8136	11h 27m 55s	-11° 03’ 40”
Star	HIP 56154	7.018	11h 30m 38s	-13° 03’ 00”
Star	HIP 56279	7.2084	11h 32m 15s	-12° 23’ 47”
Star	HIP 56327	8.6296	11h 32m 51s	-12° 02’ 05”
Galaxy	NGC 3663	13.3	11h 23m 59s	-12° 17’ 44”
Galaxy	PGC 35152	13.8	11h 25m 55s	-11° 46’ 30”
Galaxy	NGC 3693	13.1	11h 28m 11s	-13° 11’ 43”

Additional resources

Additional Resources about Comet 17P/Holmes

• 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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