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 107793	7.9892	21h 50m 11s	-11° 20’ 35”
Star	HIP 107589	8.864	21h 47m 27s	-09° 45’ 23”
Star	HIP 108058	6.5834	21h 53m 36s	-10° 18’ 41”
Star	HIP 107517	5.57	21h 46m 32s	-11° 21’ 57”
Star	HIP 107622	8.471	21h 47m 55s	-09° 51’ 48”
Star	HIP 107857	7.428	21h 51m 05s	-10° 02’ 16”
Star	HIP 107373	8.6386	21h 44m 52s	-10° 12’ 47”
Star	HIP 107846	8.5832	21h 50m 56s	-10° 38’ 38”
Star	HIP 108043	8.343	21h 53m 21s	-10° 15’ 20”
Star	HIP 107820	6.4064	21h 50m 35s	-08° 58’ 56”
Star	HIP 107487	5.8626	21h 46m 16s	-09° 16’ 33”
Star	HIP 107508	8.6508	21h 46m 26s	-10° 49’ 13”
Star	HIP 108067	8.6274	21h 53m 42s	-09° 46’ 34”
Star	HIP 108018	6.7812	21h 53m 00s	-10° 33’ 45”
Star	HIP 107974	7.1536	21h 52m 29s	-09° 25’ 04”

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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