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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 51793010h 34m 56s-74° 21’ 44”
StarHIP 521316.725810h 39m 01s-75° 09’ 26”
StarHIP 516408.012610h 33m 04s-76° 02’ 20”
StarHIP 509543.959810h 24m 23s-74° 01’ 53”
StarHIP 521505.912810h 39m 15s-74° 29’ 36”
StarHIP 499138.45410h 11m 27s-74° 27’ 37”
StarHIP 507638.324410h 21m 57s-75° 01’ 48”
StarHIP 522818.819210h 40m 58s-74° 01’ 13”
StarHIP 503508.492210h 16m 52s-74° 25’ 36”
StarHIP 518737.32810h 35m 54s-75° 47’ 35”
StarHIP 511217.772410h 26m 39s-75° 08’ 58”
StarHIP 518428.586410h 35m 30s-74° 36’ 01”
StarHIP 532398.939410h 53m 24s-75° 23’ 06”
StarHIP 518288.687810h 35m 18s-75° 04’ 12”
StarHIP 526138.470410h 45m 32s-74° 49’ 18”
StarHIP 523976.854810h 42m 36s-75° 27’ 49”
StarHIP 526147.634810h 45m 32s-75° 00’ 28”
StarHIP 518356.172610h 35m 24s-76° 18’ 32”
StarHIP 509766.173810h 24m 44s-73° 58’ 18”
StarHIP 510748.515210h 26m 08s-76° 27’ 08”
StarHIP 530746.693810h 51m 30s-75° 52’ 57”

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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