Discovery | |
---|---|
Discovered by | K. S. Russel [1] |
Discovery date | March 7, 1984 |
Designations | |
1984 I;1990 XI | |
Orbital characteristics | |
Epoch | October 1, 2009 |
Aphelion | 4.793 AU (Q) |
Perihelion | 2.240 AU (q) |
Semi-major axis | 3.517 AU (a) |
Eccentricity | 0.3630 |
Orbital period | 6.60 yr |
Inclination | 6.182° |
Last perihelion | 2023-May-21
[2] October 27, 2016 [2] March 29, 2010 [1] [3] August 29, 2003 [3] |
Next perihelion | 2029-Dec-17 [4] |
94P/Russell 4 is a periodic comet in the Solar System. It fits the definition of an Encke-type comet with ( TJupiter > 3; a < aJupiter). [1] It was discovered by Ken Rusell [1] on photographic plates taken by M. Hawkins on March 7, 1984. [5] In the discovery images, Russell estimated that the comet had an apparent magnitude of 13 and a noticeable tail of 5 arc minutes. [5] In the year of discovery, the comet had come to perihelion in January 1984. [3]
With an aphelion (furthest distance from the Sun) of 4.7 AU, [1] comet 94P currently has an orbit contained completely inside of the orbit of Jupiter.
In July 1995, 94P was estimated to have a radius of about 2.6 km with an absolute magnitude (H) of 15.1. [6] It may have a very elongated nucleus with an axial ratio of a/b >= 3. [6]
Discovery | |
---|---|
Discovered by | K. S. Russel [1] |
Discovery date | March 7, 1984 |
Designations | |
1984 I;1990 XI | |
Orbital characteristics | |
Epoch | October 1, 2009 |
Aphelion | 4.793 AU (Q) |
Perihelion | 2.240 AU (q) |
Semi-major axis | 3.517 AU (a) |
Eccentricity | 0.3630 |
Orbital period | 6.60 yr |
Inclination | 6.182° |
Last perihelion | 2023-May-21
[2] October 27, 2016 [2] March 29, 2010 [1] [3] August 29, 2003 [3] |
Next perihelion | 2029-Dec-17 [4] |
94P/Russell 4 is a periodic comet in the Solar System. It fits the definition of an Encke-type comet with ( TJupiter > 3; a < aJupiter). [1] It was discovered by Ken Rusell [1] on photographic plates taken by M. Hawkins on March 7, 1984. [5] In the discovery images, Russell estimated that the comet had an apparent magnitude of 13 and a noticeable tail of 5 arc minutes. [5] In the year of discovery, the comet had come to perihelion in January 1984. [3]
With an aphelion (furthest distance from the Sun) of 4.7 AU, [1] comet 94P currently has an orbit contained completely inside of the orbit of Jupiter.
In July 1995, 94P was estimated to have a radius of about 2.6 km with an absolute magnitude (H) of 15.1. [6] It may have a very elongated nucleus with an axial ratio of a/b >= 3. [6]