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C/2017 O1 (ASASSN1) live position and data

This page shows Comet C/2017 O1 (ASASSN1) 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 O1 (ASASSN1) (less than 1.5 degrees):

TypeNameMagnitudeArDec
StarHIP 57901011h 52m 32s+27° 30’ 54”
StarHIP 575917.194411h 48m 25s+28° 25’ 01”
StarHIP 576047.03211h 48m 36s+28° 47’ 59”
StarHIP 583067.35211h 57m 25s+26° 45’ 45”
StarHIP 575637.384611h 47m 56s+27° 20’ 26”
StarHIP 582136.766211h 56m 20s+26° 40’ 46”
StarHIP 579228.216211h 52m 46s+28° 11’ 29”
StarHIP 575178.4211h 47m 20s+27° 23’ 50”
StarHIP 577617.875411h 50m 43s+28° 05’ 48”
StarHIP 576437.277411h 49m 12s+28° 07’ 17”
StarHIP 582848.729411h 57m 12s+27° 09’ 34”
GalaxyNGC 400414.011h 58m 05s+27° 52’ 37”
GalaxyNGC 390012.311h 49m 08s+27° 01’ 24”
GalaxyNGC 400812.911h 58m 17s+28° 11’ 34”
GalaxyNGC 391213.411h 50m 04s+26° 28’ 46”
GalaxyNGC 401713.411h 58m 45s+27° 27’ 15”

Additional resources

Additional Resources about Comet C/2017 O1 (ASASSN1)

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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