P/2003 T12 (SOHO)

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P/2003 T12
Discovery
Discovered bySolar and Heliospheric Observatory (SOHO)
Discovery dateOctober 10, 2003
Orbital characteristics
Semi-major axis2.568001678282154
Eccentricity0.7761661415724617
Orbital period
  • 1503.112137502885
  • 4.115296748810088

P/2003 T12 is a periodical comet that is observed in the sky every 10–15 years.[1] On January 13, 2012, it was observed by the satellite STEREO-B, and the most documented phase of P/2003 T12 was observed on that date.

January 12, 2012 Event[edit]

During its apparition on January 12, 2012, it ventured into the highest phase angle ever observed for a comet, and the forward-scattering enhancement in brightness was marked, as large as ~8.5 mag. This has given insight into Henyey-Greenstein (HG) space-dust.[2]

References[edit]

  1. ^ "Small-Body Database Lookup". ssd.jpl.nasa.gov. Retrieved 2024-03-19.
  2. ^ Hui, M. -T. (2013-12-01). "Observations of Comet P/2003 T12 = 2012 A3 (SOHO) at large phase angle in STEREO-B". Monthly Notices of the Royal Astronomical Society. 436: 1564–1575. doi:10.1093/mnras/stt1683. ISSN 0035-8711.