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 60849	0	12h 28m 18s	+12° 22’ 37”
Star	HIP 61189	0	12h 32m 16s	+12° 10’ 45”
Star	HIP 61398	8.8688	12h 34m 52s	+12° 27’ 33”
Star	HIP 60842	7.7448	12h 28m 14s	+11° 49’ 35”
Star	HIP 60607	8.7584	12h 25m 20s	+11° 54’ 35”
Star	HIP 61051	8.5492	12h 30m 48s	+12° 29’ 12”
Star	HIP 60945	8.5034	12h 29m 32s	+11° 29’ 32”
Star	HIP 60871	7.8922	12h 28m 34s	+12° 07’ 02”
Star	HIP 61135	8.047	12h 31m 39s	+12° 07’ 40”
Star	HIP 60918	8.5748	12h 29m 05s	+13° 57’ 01”
Galaxy	NGC 4461	12.0	12h 29m 02s	+13° 11’ 08”
Galaxy	NGC 4550	12.5	12h 35m 30s	+12° 13’ 17”
Galaxy	NGC 4387	13.0	12h 25m 41s	+12° 48’ 41”
Galaxy	NGC 4476	13.0	12h 29m 58s	+12° 20’ 53”
Galaxy	NGC 4551	13.0	12h 35m 38s	+12° 15’ 56”
Galaxy	NGC 4479	13.5	12h 30m 18s	+13° 34’ 41”
Galaxy	NGC 4491	13.5	12h 30m 56s	+11° 29’ 00”
Galaxy	NGC 4486A	13.5	12h 30m 57s	+12° 16’ 10”
Galaxy	IC 3418	14.0	12h 29m 43s	+11° 24’ 06”
Galaxy	NGC 4486	9.6	12h 30m 49s	+12° 23’ 24”
Galaxy	NGC 4503	12.1	12h 32m 06s	+11° 10’ 41”
Galaxy	NGC 4402	12.6	12h 26m 07s	+13° 06’ 45”
Galaxy	NGC 4531	12.6	12h 34m 16s	+13° 04’ 33”
Galaxy	NGC 4374	10.2	12h 25m 03s	+12° 53’ 13”
Galaxy	NGC 4473	11.2	12h 29m 48s	+13° 25’ 49”
Galaxy	NGC 4413	12.7	12h 26m 31s	+12° 36’ 34”
Galaxy	NGC 4506	13.7	12h 32m 10s	+13° 25’ 18”
Galaxy	NGC 4459	11.3	12h 28m 59s	+13° 58’ 45”
Galaxy	NGC 4388	11.8	12h 25m 46s	+12° 39’ 41”
Galaxy	NGC 4435	11.8	12h 27m 40s	+13° 04’ 46”
Galaxy	NGC 4425	12.8	12h 27m 13s	+12° 44’ 08”
Galaxy	NGC 4440	12.8	12h 27m 53s	+12° 17’ 34”
Galaxy	NGC 4458	12.8	12h 28m 57s	+13° 14’ 35”
Galaxy	NGC 4406	9.9	12h 26m 11s	+12° 56’ 48”
Galaxy	NGC 4438	10.9	12h 27m 45s	+13° 00’ 34”
Galaxy	NGC 4552	10.9	12h 35m 39s	+12° 33’ 24”
Galaxy	NGC 4477	11.4	12h 30m 02s	+13° 38’ 11”
Galaxy	NGC 4478	12.4	12h 30m 17s	+12° 19’ 44”
Galaxy	NGC 4452	12.9	12h 28m 43s	+11° 45’ 20”
Galaxy	NGC 4528	12.9	12h 34m 06s	+11° 19’ 20”
Galaxy	NGC 4497	13.4	12h 31m 32s	+11° 37’ 36”
Galaxy	NGC 4431	13.9	12h 27m 26s	+12° 17’ 26”

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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