astro.wikisort.org - Comet

206P/Barnard–Boattini was the first comet to be discovered by photographic means.[6] The American astronomer Edward Emerson Barnard did so on the night of October 13, 1892.

206P/Barnard–Boattini

Discovery
Discovery date	October 13, 1892
Alternative designations	Barnard 3; D/1892 T1; P/1892 T1; 1892e; 1892 V; P/2008 T3
Orbital characteristics A
Epoch	2000-Mar-03.00 (JD 2451606.5)[1]
Aphelion	5.30856 AU
Perihelion	0.97881 AU
Semi-major axis	3.143688 AU
Eccentricity	0.688642
Orbital period	5.5740 a
Inclination	31.9741°
Earth MOID	0.018 AU (2,700,000 km)[1]
Last perihelion	March 4, 2021[2] August 27, 2014[3][4] October 25, 2008
Next perihelion	2027-Sep-13[5]

After this apparition this comet was lost and was thus designated D/1892 T1.

Ľuboš Neslušan (Astronomical Institute of the Slovak Academy of Sciences) suggests that 14P/Wolf and this comet are siblings which stem from a common parent comet.[7]

This comet was rediscovered on October 7, 2008 by Andrea Boattini in the course of the Mt. Lemmon Survey. It was initially credited to Boattini before it was identified as Comet Barnard 3.[6] The comet passed 0.1904 AU (28,480,000 km; 17,700,000 mi) from Earth on October 21, 2008.[1] The comet has made 20 revolutions since 1892 and passed within 0.3–0.4 AU of Jupiter in 1922, 1934 and 2005.[8][9]

It was not seen during the 2014 perihelion passage because when the faint comet was at the brightest of about magnitude 20 it was only 75 degrees from the Sun. It has not been seen since January 2009.[2] The comet passed 0.1303 AU (19,490,000 km; 12,110,000 mi) from Jupiter on July 9, 2017.[1]

It will come to perihelion in 2021, but will be close to the Sun in the sky and is not expected to get brighter than about apparent magnitude 23.

The comet has an Earth-MOID of 0.018 AU (2,700,000 km; 1,700,000 mi).[1]

References

External links

• Orbital simulation from JPL (Java) / Horizons Ephemeris
• 206P/Barnard-Boattini – Seiichi Yoshida @ aerith.net

Numbered comets
Previous 205P/Giacobini	206P/Barnard–Boattini	Next 207P/NEAT

На других языках

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[de] 206P/Barnard-Boattini

206P/Barnard-Boattini ist der erste Komet, der mit Hilfe der Photographie entdeckt wurde. Dies gelang dem US-amerikanischen Astronomen Edward Emerson Barnard in der Nacht des 13. Oktober 1892. Nach dieser Beobachtung ging der Komet verloren und erhielt die vorläufige Bezeichnung D/1892 T1. Am 7. Oktober 2008 gelang dem italienischen Astronomen Andrea Boattini die Wiederentdeckung des Kometen auf Aufnahmen des Mount Lemmon Survey.

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- [en] 206P/Barnard–Boattini

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[ru] 206P/Барнарда — Боаттини

Комета Барнарда — Боаттини (англ. 206P/Barnard-Boattini; ранее D/1892 T1) — короткопериодическая комета семейства Юпитера, открытая 13 октября 1892 года Эдвардом Барнардом. Первая комета, открытая фотографическими средствами[1].

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