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 63295	8.9844	12h 58m 18s	+09° 45’ 24”
Star	HIP 63420	6.615	12h 59m 46s	+09° 31’ 33”
Star	HIP 63525	8.5882	13h 01m 01s	+08° 35’ 02”
Star	HIP 62879	8.9118	12h 53m 13s	+08° 45’ 49”
Star	HIP 63221	6.78	12h 57m 13s	+08° 17’ 37”
Star	HIP 63376	7.8124	12h 59m 09s	+07° 54’ 02”
Star	HIP 63344	8.2316	12h 58m 48s	+08° 12’ 36”
Star	HIP 63174	8.38	12h 56m 35s	+09° 09’ 24”
Star	HIP 63267	7.1478	12h 57m 51s	+09° 20’ 19”
Star	HIP 63173	7.4914	12h 56m 35s	+09° 18’ 59”
Galaxy	UGC 8155	13.6	13h 03m 13s	+07° 47’ 53”
Galaxy	NGC 4795	12.2	12h 55m 03s	+08° 04’ 00”

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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