astro.wikisort.org - Comet

C/1911 O1 (Brooks), also designated 1911 V or Comet Brooks, was a bright comet discovered in July 1911 by astronomer William Robert Brooks.

C/1911 O1 (Brooks)

C/1911 O1
Discovery
Discovered by	William Robert Brooks
Discovery date	July 21, 1911
Alternative designations	1911 V, 1911c, Comet Brooks
Orbital characteristics A
Epoch	October 11, 1911 (JD 2419320.5)
Aphelion	~306.9 AU[1]
Perihelion	0.489429 AU
Semi-major axis	~153.7 AU
Eccentricity	0.997005
Orbital period	~1900 yr[1]
Inclination	33.8095°
Last perihelion	October 28, 1911
Next perihelion	unknown

It is notable for becoming a bright naked-eye object of second magnitude, with a narrow straight tail of up to thirty degrees in length and a distinct blue colour;[2] this colour seen in some comets is usually a result of the emission of carbon monoxide ions. It was also notable for uniquely being visible at the same time (mid October 1911) and in the same part of the sky as a second bright comet; this was C/1911 S3 (Beljawsky), which reached the first magnitude, had a fifteen degree tail and a bright golden-yellow appearance.[2]

References

External links

• Orbital elements of C/1911 O1 NASA JPL

На других языках

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[de] C/1911 O1 (Brooks)

C/1911 O1 (Brooks) ist ein Komet, der im Jahr 1911 mit dem bloßen Auge gesehen werden konnte. Er wird von einigen zu den „Großen Kometen“ gezählt.

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- [en] C/1911 O1

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