45p 本田彗星 + 41P

[peter]

彗星 現在晚上 10點多就出來 
不過最近月亮大

http://www.skyandtelescope.com/observing/green-comet-zooms-moonless-skies/





UPDATE: Great news! I was able to spot the comet in 10x50 binoculars 15 minutes before moonrise tonight (Feb. 14). It appeared quite large — about 30′ or a full moon diameter wide — but of course faint and very diffuse with an estimated magnitude of +8.3. In just a night or two, the comet will be considerably higher before moonrise and a little bit easier to see.

亮度只有  +8.3

快到可以整晚都可以拍時間 ,
不過亮度開始下降中了 .

[peter]

拍起來好暗阿


http://spaceweathergallery.com/indiv_upload.php?upload_id=133008

Bright moonlight and a diffuse, dim coma made imaging Comet 45P/Honda-Mrkos-Pajdusakova in Bootes quite a challenge. This image was made of 41 twenty second exposures taken with a Canon 70D and a Canon 200 mm f/2.8 lens. (ISO 1000; f/3.5) The rapid movement of the central coma can be seen in this 14 minute exposure.
 

[peter]

http://spaceweathergallery.com/indiv_upload.php?upload_id=133006

單張 35s 

taken by michael jäger on February 15, 2017 @ Stixendorf Austria


single image 1x35sec
12/4 G3-16200 3x3bin

[peter]

Arecibo radar captures revealing images of Comet 45P

[peter]

http://www.cloudynights.com/topic/556459-45phonda-mrkos-pajdusakova-2016/page-3


vakulenko_sergiy
02.16.2017, ED80, OSC QHY8 bin2, 75x60sec

[peter]

果然很暗 ..


FB 

Chang Sheng Hsien
https://www.facebook.com/photo.php?fbid=1407078585989975&set=pcb.1856928797912842&type=3&theater

[王朝鈺]

星期五晚上頂著厚厚的高空雲在寶二觀景台試了一小時,暴力處理後才看到一點點綠暈...
DSS疊的時候每張單張都沒有任何彗核或彗髮的跡象...

移動的蠻快的,箭頭是移動方向~

[peter]

https://www.facebook.com/photo.php?fbid=1535575299789355&set=a.269535393060025.83092.100000107007390&type=3&theater

Fritz Helmut Hemmerich

Comet 45p from yesterday early morning: a real beauty. Some very interesting details: the asymmetric coma, the dust tails color change and its development on both sides of the nucleus. The visible galaxies are Whale Galaxy and Hockey stick Galaxy. Comet 45p. 2017-02-19. 1:30 - 4:05h UT. Very bright coma and dust tail.
Technique: 292 x 30 sec,

Hyperstar C14 F/1.9,
 Sony A7s CentralDS(cooled),

ISO 3200, no filter, ASA DDM85 mount, Tenerife 1180. FOV about 1.7° diagonal.

[peter]

45p   41p

https://twitter.com/katsumi_comet