261P/Larson live position and data

This page shows Comet 261P/Larson 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 261P/Larson (less than 1.5 degrees):

Type	Name	Magnitude	Ar	Dec
Star	HIP 45410	5.2156	09h 15m 13s	+14° 56’ 29”
Star	HIP 45295	8.3972	09h 13m 50s	+14° 12’ 39”
Star	HIP 45043	8.5114	09h 10m 27s	+15° 35’ 12”
Star	HIP 45495	8.5296	09h 16m 11s	+15° 07’ 16”
Star	HIP 45462	7.7434	09h 15m 53s	+15° 00’ 31”
Star	HIP 45170	6.417	09h 12m 17s	+14° 59’ 43”
Star	HIP 44997	8.2804	09h 09m 53s	+14° 27’ 24”
Star	HIP 45488	8.3004	09h 16m 07s	+14° 07’ 35”
Star	HIP 45474	8.6046	09h 15m 59s	+14° 53’ 04”
Star	HIP 45201	7.6294	09h 12m 40s	+16° 31’ 29”
Star	HIP 45065	8.901	09h 10m 42s	+14° 15’ 32”
Star	HIP 44723	7.8364	09h 06m 45s	+15° 12’ 59”
Star	HIP 45387	8.2736	09h 14m 57s	+16° 00’ 16”
Star	HIP 44985	8.3476	09h 09m 47s	+15° 26’ 47”
Star	HIP 44942	8.1382	09h 09m 14s	+15° 14’ 27”
Star	HIP 44838	7.2308	09h 08m 08s	+14° 42’ 41”

Additional resources

Additional Resources about Comet 261P/Larson

• 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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