123P/West-Hartley live position and data

This page shows Comet 123P/West-Hartley 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 123P/West-Hartley (less than 1.5 degrees):

StarHIP 645358.66413h 13m 40s-04° 22’ 37”
StarHIP 647318.840413h 16m 02s-03° 54’ 21”
StarHIP 644998.222413h 13m 13s-05° 01’ 24”
StarHIP 644678.248413h 12m 48s-03° 53’ 40”
StarHIP 645598.991413h 13m 59s-05° 48’ 54”
StarHIP 648118.971613h 17m 00s-04° 43’ 32”
StarHIP 642384.3813h 09m 57s-05° 32’ 20”
StarHIP 647837.781213h 16m 40s-05° 34’ 24”
StarHIP 649098.231813h 18m 17s-05° 47’ 21”
StarHIP 642967.59813h 10m 42s-04° 56’ 30”
StarHIP 641478.518213h 08m 49s-05° 59’ 44”
StarHIP 647327.62313h 16m 03s-05° 40’ 07”
GalaxyNGC 498913.613h 09m 16s-05° 23’ 48”
GalaxyNGC 501512.913h 12m 22s-04° 20’ 21”

Additional resources

Additional Resources about Comet 123P/West-Hartley

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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