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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 66360013h 36m 09s-44° 08’ 53”
StarHIP 656917.067613h 28m 05s-43° 46’ 06”
StarHIP 660218.355413h 32m 09s-42° 42’ 11”
StarHIP 657318.389613h 28m 27s-42° 47’ 43”
StarHIP 664275.875613h 37m 06s-44° 08’ 35”
StarHIP 664947.800213h 37m 52s-42° 30’ 52”
StarHIP 664317.239813h 37m 08s-42° 46’ 52”
StarHIP 663766.787813h 36m 26s-42° 24’ 55”
StarHIP 660358.66213h 32m 18s-44° 02’ 40”
StarHIP 668507.130813h 42m 01s-43° 08’ 49”
StarHIP 662047.9713h 34m 11s-42° 52’ 39”
StarHIP 657627.953813h 28m 55s-43° 44’ 13”
StarHIP 667788.475413h 41m 12s-42° 30’ 08”
StarHIP 659556.430213h 31m 22s-42° 27’ 52”
StarHIP 658268.16113h 29m 38s-41° 52’ 54”
StarHIP 659898.360813h 31m 47s-44° 01’ 11”
StarHIP 663078.839413h 35m 21s-41° 48’ 42”
StarHIP 665156.8113h 38m 03s-42° 45’ 53”
StarHIP 661396.621813h 33m 29s-43° 25’ 21”
StarHIP 660687.207413h 32m 39s-44° 27’ 00”
GalaxyESO 324-2913.313h 29m 04s-41° 59’ 48”
GalaxyNGC 523713.213h 37m 38s-42° 50’ 50”

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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