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C/2017 M4 (ATLAS) live position and data

This page shows Comet C/2017 M4 (ATLAS) 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 C/2017 M4 (ATLAS) (less than 1.5 degrees):

TypeNameMagnitudeArDec
StarHIP 709768.634814h 31m 01s-43° 50’ 53”
StarHIP 705197.59814h 25m 29s-43° 38’ 36”
StarHIP 704516.328614h 24m 40s-44° 18’ 39”
StarHIP 711407.747814h 32m 57s-42° 24’ 19”
StarHIP 708988.299814h 29m 53s-42° 31’ 04”
StarHIP 710278.294414h 31m 36s-42° 24’ 40”
StarHIP 708338.792614h 29m 07s-43° 21’ 42”
StarHIP 700545.414614h 20m 09s-43° 03’ 31”
StarHIP 703508.08314h 23m 37s-43° 57’ 42”
StarHIP 701638.074214h 21m 20s-43° 29’ 18”
StarHIP 713867.782214h 35m 51s-43° 22’ 02”
StarHIP 713217.821414h 35m 05s-43° 33’ 16”
StarHIP 709198.78314h 30m 10s-43° 32’ 48”
StarHIP 710367.80114h 31m 41s-43° 05’ 17”
StarHIP 709186.894814h 30m 09s-43° 51’ 49”
StarHIP 713688.034614h 35m 44s-42° 50’ 04”
StarHIP 708968.419414h 29m 51s-42° 33’ 22”
StarHIP 705806.210814h 26m 13s-42° 19’ 06”
StarHIP 712858.21714h 34m 41s-44° 01’ 41”
StarHIP 707166.964814h 27m 45s-44° 19’ 48”
GalaxyIC 444412.114h 31m 39s-43° 25’ 09”
GalaxyNGC 564310.914h 32m 41s-44° 10’ 23”

Additional resources

Additional Resources about Comet C/2017 M4 (ATLAS)

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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