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討論區 => 天文新知 => 主題作者是: peter 於 2021-01-05 11:13:47



主題: 潛在彗星 C4AGJ62 and N00ht7m
作者: peter2021-01-05 11:13:47
from FB comet Watch

by  Pushpa Bhagat

C4AGJ62  - It is highly eccentric(0.9988834)(e<1). It is active and the Perihelion Distance(q) is near 0.38 AU. It is likely an Oort Cloud Comet. It has a retrograde orbit.



https://catalina.lpl.arizona.edu/css-orbit-view?Namev=C4AGJ62&JDTv=2459219.5&av=0&Mv=0&ev=1.0131834&Iv=132.57525&Periv=222.33959&Nodev=254.41392&Pv=0&qv=0.639899&Tv=2459580.905653&Cx=771&Cy=-210&Cz=601&CZ=268&fbclid=IwAR24oubbKfYoVcmbFLCyWbEh1U4ST3DXDH3RYxAWdO2cOQn3VlT4MdHJodc


Comet 2 (N00ht7m) - Eccentricity is not very high(0.6011833). The Perihelion Distance ranges a lot (0.62919201 +/- 0.433 AU). Comet will have Neowise in its designation.

https://minorplanetcenter.net/iau/NEO/pccp_tabular.html?fbclid=IwAR1rrOhQ_1QAAlWDsXfbiOBBKKoaw78lA56fgAAkqYIdAcvlrOQ9BDC7NMc


主題: 回覆: 潛在彗星 C4AGJ62 and N00ht7m
作者: peter2021-01-06 07:33:02
C4AGJ62 naked eye comet later this year
 https://groups.io/g/comets-ml/topic/c4agj62_naked_eye_comet_later/79447628?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,79447628


主題: 回覆: 潛在彗星 C4AGJ62 and N00ht7m
作者: peter2021-01-06 07:36:06
UPDATED:
Potential Naked Eye comet for Christmas 2021!
A new comet on the possible comet confirmation page labelled C4AGJ62 is showing promise for naked eye visibility during December 2021.
Initially a northern hemisphere object, it will be 0.23AU from Earth on Dec 12 2021 and at high phase angle +150 degrees. The comet heads southwards after this and has an exceptionally close encounter with Venus on Dec 18 at 4 million kms!!
Perihelion occurs on Jan 3 2022 at 0.61AU.
The comet will be best seen from southern hemisphere evening skies during late December 2021.