https://www.universetoday.com/137999/comes-comet-heinze-holidays/
Comet C/2017 T1 Heinze passes near the galaxy NGC 2706 on November 25th. Image credit and copyright: Charles Bell.
Comet Heinze 軌道是一個有趣的彗星，在聖誕節當天將越過黃道向北，並在2018年2月21日 8700萬公里（0.58AU ）的遠日點。
2018年 1月4日，距離地球最近的為3300萬公里（0.22 AU） ， 這顆彗星每天會 7度速度 飄過 鹿豹座星座。
4月1日 離地球只有0.0144AU
Comet C/2017 T1 Heinze 軌道 離心率很靠近1, 所以 到底太陽系來的 還是 外星係
December
7- Crosses the celestial equator northward.
16- Passes near +3 magnitude star Zeta Hydrae.
18- Crosses into the constellation Cancer.
21- Passes near the open cluster M67.
25- Photo op: passes near the Beehive Cluster M44 and crosses the ecliptic northward.
29- Skirts the corner of the constellation Gemini and crosses into the Lynx.
January
1- May break +10th magnitude?
1- Passes near the +4.5 magnitude star 21 Lyncis.
2- Reaches opposition.
3- Passes near the +4.5 magnitude star 2 Lyncis and into the constellation Camelopardalis.
5- Passes near the +4 magnitude star Alpha Camelopardalis.
6- Passes 31 degrees from the north celestial pole.
7- Crosses into the constellation Cassiopeia.
10-Crosses the galactic equator southward.
13- Crosses into the constellation Andromeda.
14-Crosses into the constellation Lacerta.
17- Passes near the +4.5 magnitude star 6 Lacertae.
21- Passes near the +4 magnitude star 1 Lacertae.
23- Crosses into the constellation Pegasus.
February
26- Passes near the globular cluster M15.
March
1- May drop back down below +10th magnitude?
觀星論壇 
