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):

Type	Name	Magnitude	Ar	Dec
Star	HIP 62388	6.5628	12h 47m 10s	+15° 35’ 30”
Star	HIP 62356	4.9802	12h 46m 38s	+16° 34’ 39”
Star	HIP 62531	8.5188	12h 48m 51s	+15° 24’ 51”
Star	HIP 62409	8.7424	12h 47m 22s	+16° 49’ 35”
Star	HIP 62076	8.8164	12h 43m 20s	+15° 22’ 44”
Star	HIP 61727	7.5472	12h 39m 09s	+16° 28’ 47”
Star	HIP 62510	8.5334	12h 48m 38s	+16° 56’ 17”
Star	HIP 61901	7.8178	12h 41m 06s	+15° 22’ 39”
Star	HIP 61844	7.8334	12h 40m 29s	+16° 16’ 45”
Star	HIP 62116	8.766	12h 43m 51s	+15° 06’ 44”
Star	HIP 62111	8.9694	12h 43m 47s	+15° 42’ 53”
Star	HIP 62341	8.4314	12h 46m 28s	+16° 31’ 17”
Galaxy	NGC 4595	13.0	12h 39m 51s	+15° 17’ 54”
Galaxy	NGC 4651	11.3	12h 43m 42s	+16° 23’ 39”
Galaxy	NGC 4710	11.9	12h 49m 38s	+15° 09’ 55”

Additional resources

Additional Resources about Comet C/2017 O1 (ASASSN1)

• 15 Days Ephemerides
• Interactive Sky Map (Planetarium)
• Rise & Set Times
• Distance from Earth
• Light Curve
• Orbital Elements

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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