C/1917 F1 (Mellish), also known as Comet 1917Ι and 1917a, is a Halley-type comet discovered by John E. Mellish on 19 March 1917. The comet has an orbital period of 143 years and last passed perihelion on 11 April 1917. It is the parent body of the December Monocerotids and has also been suggested to be the parent body of daytime kappa Leonids,[3] April ρ-Cygnids, November Orionids, and Canis-Minoridsmeteor showers.[4][5]
The comet upon discovery was in the constellation of Aries and it was located low in the sky and was very condensed. On 23 March a short tail was reported.[1] After perihelion, on 11 April, the comet nucleus was reported to be very bright on 14 April, with a report mentioning it was brighter than Venus,[6] while it developed a tail that measured 10 degrees in length. The comet faded quickly and by the end of April it was of 5th magnitude and the comet's tail was three degrees long.[7]
The comet has an orbital period of about 145 years, and thus fits the definition of Halley type comets, which have an orbital period between 20 and 200 years. Its orbital period is similar to comet Swift-Tuttle, the parent body of the Perseids. The comet has a relatively small perihelion distance, about 0.19 AU (28 million km; 18 million mi).[8] The minimum orbit intersection distance with Earth is 0.06 AU (9.0 million km; 5.6 million mi) while the same distance from Venus is 0.0084 AU (1.26 million km; 0.78 million mi), and could create a meteor shower in Venus.[9]
In 1979, Ichiro Hasegawa tentatively identified a comet observed in December 193 CE as a previous apparition of C/1917 F1 (Mellish).[10]
Referencesedit
^ ab"New Comet a 1917 (Mellish)". Popular Astronomy. 25: 264–265. 1 January 1917. ISSN 0197-7482.
^"Small-Body Database Lookup: C/1917 F1 (Mellish)". ssd.jpl.nasa.gov.
^Neslušan, L.; Hajduková, M. (June 2014). "The meteor-shower complex of comet C/1917 F1 (Mellish)". Astronomy & Astrophysics. 566: A33. doi:10.1051/0004-6361/201423382.
^Vereš, P.; Kornoš, L.; Tóth, J. (21 March 2011). "Meteor showers of comet C/1917 F1 Mellish". Monthly Notices of the Royal Astronomical Society. 412 (1): 511–521. arXiv:1010.5733. doi:10.1111/j.1365-2966.2010.17923.x.
^Baldwin, J. M. (1 January 1918). "Observations de la comète 1917 a Meìlish". Journal des Observateurs. 2: 37. ISSN 0368-3389.
^Wood, H. E. (1 July 1917). "Orbit of Mellish's Comet". The Observatory. 40: 273–274. ISSN 0029-7704.
^Neslušan, L.; Vaubaillon, J.; Hajduková, M. (May 2016). "A study to improve the past orbit of comet C/1917 F1 (Mellish) on the basis of its observed meteor showers". Astronomy & Astrophysics. 589: A100. doi:10.1051/0004-6361/201527526.
^Christou, A. A. (March 2010). "Annual meteor showers at Venus and Mars: lessons from the Earth". Monthly Notices of the Royal Astronomical Society. 402 (4): 2759–2770. doi:10.1111/j.1365-2966.2009.16097.x.
^Hasegawa, I. (1 January 1979). "Orbits of Ancient and Medieval Comets". Publications of the Astronomical Society of Japan. 31: 257–270. ISSN 0004-6264.
Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters
April 11, 2024
1917, mellish, also, known, comet, 1917Ι, 1917a, halley, type, comet, discovered, john, mellish, march, 1917, comet, orbital, period, years, last, passed, perihelion, april, 1917, parent, body, december, monocerotids, also, been, suggested, parent, body, dayti. C 1917 F1 Mellish also known as Comet 1917I and 1917a is a Halley type comet discovered by John E Mellish on 19 March 1917 The comet has an orbital period of 143 years and last passed perihelion on 11 April 1917 It is the parent body of the December Monocerotids and has also been suggested to be the parent body of daytime kappa Leonids 3 April r Cygnids November Orionids and Canis Minorids meteor showers 4 5 C 1917 F1 Mellish Discovery 1 Discovered byJohn Edward MellishDiscovery date19 March 1917DesignationsAlternative designations1917a 1917IOrbital characteristics 2 Epoch1917 Mar 31 0Observation arc38 daysAphelion54 61 AUPerihelion0 190 AUSemi major axis27 40 AUEccentricity0 9931Orbital period143 yearsInclination32 69 Longitude ofascending node88 67 Argument ofperiapsis121 31 Last perihelion11 April 1917Next perihelion 2060Earth MOID0 062 AUJupiter MOID1 53 AUComet totalmagnitude M1 11The comet upon discovery was in the constellation of Aries and it was located low in the sky and was very condensed On 23 March a short tail was reported 1 After perihelion on 11 April the comet nucleus was reported to be very bright on 14 April with a report mentioning it was brighter than Venus 6 while it developed a tail that measured 10 degrees in length The comet faded quickly and by the end of April it was of 5th magnitude and the comet s tail was three degrees long 7 The comet has an orbital period of about 145 years and thus fits the definition of Halley type comets which have an orbital period between 20 and 200 years Its orbital period is similar to comet Swift Tuttle the parent body of the Perseids The comet has a relatively small perihelion distance about 0 19 AU 28 million km 18 million mi 8 The minimum orbit intersection distance with Earth is 0 06 AU 9 0 million km 5 6 million mi while the same distance from Venus is 0 0084 AU 1 26 million km 0 78 million mi and could create a meteor shower in Venus 9 In 1979 Ichiro Hasegawa tentatively identified a comet observed in December 193 CE as a previous apparition of C 1917 F1 Mellish 10 References edit a b New Comet a 1917 Mellish Popular Astronomy 25 264 265 1 January 1917 ISSN 0197 7482 Small Body Database Lookup C 1917 F1 Mellish ssd jpl nasa gov 00212 KLE Daytime kappa Leonids www ta3 sk IAU Retrieved 13 May 2023 Neslusan L Hajdukova M June 2014 The meteor shower complex of comet C 1917 F1 Mellish Astronomy amp Astrophysics 566 A33 doi 10 1051 0004 6361 201423382 Veres P Kornos L Toth J 21 March 2011 Meteor showers of comet C 1917 F1 Mellish Monthly Notices of the Royal Astronomical Society 412 1 511 521 arXiv 1010 5733 doi 10 1111 j 1365 2966 2010 17923 x Baldwin J M 1 January 1918 Observations de la comete 1917 a Meilish Journal des Observateurs 2 37 ISSN 0368 3389 Wood H E 1 July 1917 Orbit of Mellish s Comet The Observatory 40 273 274 ISSN 0029 7704 Neslusan L Vaubaillon J Hajdukova M May 2016 A study to improve the past orbit of comet C 1917 F1 Mellish on the basis of its observed meteor showers Astronomy amp Astrophysics 589 A100 doi 10 1051 0004 6361 201527526 Christou A A March 2010 Annual meteor showers at Venus and Mars lessons from the Earth Monthly Notices of the Royal Astronomical Society 402 4 2759 2770 doi 10 1111 j 1365 2966 2009 16097 x Hasegawa I 1 January 1979 Orbits of Ancient and Medieval Comets Publications of the Astronomical Society of Japan 31 257 270 ISSN 0004 6264 External links editC 1917 F1 at the JPL Small Body DatabaseClose approach Discovery Ephemeris Orbit diagram Orbital elements Physical parameters Retrieved from https en wikipedia org w index php title C 1917 F1 Mellish amp oldid 1191612384, wikipedia, wiki, book, books, library,
