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 62735	0	12h 51m 18s	-17° 35’ 12”
Star	HIP 63095	0	12h 55m 38s	-18° 48’ 47”
Star	HIP 62900	8.4262	12h 53m 29s	-19° 52’ 25”
Star	HIP 62408	7.165	12h 47m 21s	-19° 00’ 15”
Star	HIP 62954	7.015	12h 54m 00s	-18° 02’ 15”
Star	HIP 63142	7.1346	12h 56m 17s	-19° 37’ 53”
Star	HIP 62882	8.3274	12h 53m 14s	-18° 31’ 13”
Star	HIP 63271	8.9878	12h 57m 55s	-19° 11’ 17”
Star	HIP 62642	8.134	12h 50m 10s	-20° 21’ 56”
Star	HIP 63247	8.2134	12h 57m 35s	-19° 45’ 01”
Star	HIP 62996	6.5626	12h 54m 30s	-20° 05’ 52”
Star	HIP 62369	8.6548	12h 46m 56s	-19° 56’ 08”
Star	HIP 62951	8.3046	12h 53m 58s	-18° 02’ 06”
Star	HIP 62780	8.4508	12h 51m 54s	-18° 56’ 38”
Galaxy	PGC 43968	13.8	12h 54m 50s	-17° 58’ 14”
Galaxy	NGC 4830	13.0	12h 57m 27s	-19° 41’ 30”
Galaxy	ESO 575-29	13.7	12h 55m 59s	-19° 16’ 08”
Galaxy	ESO 575-21	13.9	12h 54m 05s	-20° 10’ 58”

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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