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 61669	8.5488	12h 38m 31s	+28° 34’ 23”
Star	HIP 62017	7.4562	12h 42m 39s	+28° 21’ 35”
Star	HIP 62213	7.3432	12h 45m 03s	+27° 23’ 36”
Star	HIP 61302	8.559	12h 33m 36s	+28° 04’ 53”
Star	HIP 61890	7.7854	12h 40m 55s	+27° 08’ 20”
Star	HIP 62158	7.9248	12h 44m 20s	+27° 58’ 55”
Star	HIP 62129	8.5748	12h 43m 59s	+27° 19’ 30”
Star	HIP 62218	8.8122	12h 45m 04s	+27° 44’ 49”
Star	HIP 61617	7.9724	12h 37m 38s	+28° 37’ 45”
Galaxy	NGC 4670	13.1	12h 45m 16s	+27° 07’ 33”
Galaxy	NGC 4559	10.3	12h 35m 57s	+27° 57’ 51”
Galaxy	NGC 4555	13.4	12h 35m 41s	+26° 31’ 23”

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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