117P/Helin-Roman-Alu live position and data

This page shows Comet 117P/Helin-Roman-Alu 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 in the background 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 117P/Helin-Roman-Alu (less than 1.5 degrees):

Type	Name	Magnitude	Ar	Dec
Star	HIP 1499	6.4014	00h 18m 41s	-08° 03’ 09”
Star	HIP 1265	7.342	00h 15m 51s	-05° 36’ 04”
Star	HIP 1573	6.981	00h 19m 36s	-07° 13’ 25”
Star	HIP 1252	8.8492	00h 15m 42s	-07° 18’ 23”
Star	HIP 1588	8.7052	00h 19m 51s	-05° 27’ 01”
Star	HIP 1812	7.3572	00h 23m 00s	-06° 27’ 46”
Star	HIP 1230	7.6576	00h 15m 16s	-06° 08’ 17”
Star	HIP 1350	8.8676	00h 16m 53s	-07° 11’ 31”
Star	HIP 1134	7.2792	00h 14m 10s	-07° 11’ 56”
Star	HIP 1303	8.679	00h 16m 21s	-07° 01’ 48”
Star	HIP 1422	8.1478	00h 17m 47s	-06° 09’ 16”
Star	HIP 1815	8.6182	00h 23m 00s	-06° 22’ 12”
Galaxy	PGC 1022	13.5	00h 15m 16s	-06° 20’ 40”
Galaxy	PGC 1126	13.5	00h 17m 05s	-06° 22’ 27”
Galaxy	NGC 64	14.0	00h 17m 30s	-06° 49’ 32”
Galaxy	PGC 1109	12.6	00h 16m 50s	-05° 16’ 06”
Galaxy	NGC 47	13.8	00h 14m 30s	-07° 10’ 05”
Galaxy	NGC 50	12.4	00h 14m 44s	-07° 20’ 44”

Additional resources

• 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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