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 21564	0	04h 37m 44s	+42° 24’ 04”
Star	HIP 22074	0	04h 44m 53s	+43° 29’ 59”
Star	HIP 22664	0	04h 52m 29s	+43° 17’ 33”
Star	HIP 21642	6.7472	04h 38m 53s	+42° 14’ 24”
Star	HIP 22337	8.2972	04h 48m 38s	+42° 35’ 38”
Star	HIP 21928	5.2928	04h 42m 54s	+43° 21’ 54”
Star	HIP 22019	7.5032	04h 44m 03s	+42° 25’ 07”
Star	HIP 22365	7.719	04h 48m 53s	+43° 16’ 32”
Star	HIP 22255	8.5462	04h 47m 29s	+43° 24’ 02”
Star	HIP 21832	7.2258	04h 41m 35s	+42° 07’ 10”
Star	HIP 22196	6.4696	04h 46m 26s	+42° 20’ 54”
Star	HIP 21700	8.445	04h 39m 32s	+43° 39’ 33”
Star	HIP 21538	7.6532	04h 37m 27s	+43° 01’ 15”
Star	HIP 21614	7.8656	04h 38m 24s	+42° 58’ 07”
Star	HIP 22699	5.6902	04h 52m 47s	+42° 35’ 11”
Star	HIP 22445	8.7746	04h 49m 47s	+42° 17’ 22”

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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