親子觀星會

  45p 本田彗星  + 41P

==
slooh 會播 45p 本田彗星
http://live.slooh.com/stadium/live/close-approach-of-comet-45p
==
 45p 聰奇兄拍到
==
2017年彗星 資訊


==

C/2015 V2 (JOHNSON)

http://remanzacco.blogspot.tw/2015/11/new-comet-c2015-v2-johnson.html

(http://4.bp.blogspot.com/-BZwoBzsgLU4/Vjt4bdZgCsI/AAAAAAAACRM/MIDgLB687II/s400/C2015V2_Mag.gif)

11月初發現  就能算出亮度?

剛發現的彗星只要有三個觀測位置就能推算出軌道要素。當然這僅是最除推算，不準度還是粉大。

2017 年彗星

https://en.wikipedia.org/wiki/C/2015_V2

不知道 2016年除   us10  還有那顆夠亮 ??


https://in-the-sky.org/data/comets.php

希望 c/2013 x1可以再亮些，讓大家多拍一點

http://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=24908.0

沒 US10亮

還南半球

又是南半球...  :'(

http://www.aerith.net/comet/catalog/2015V2/2015V2.html

(http://www.aerith.net/comet/catalog/2015V2/mag.gif)

C/2015 V2/Johnson  近日點好像  2017  6/11
好像可以拍

2017 年彗星資訊

http://www.fallofathousandsuns.com/comets-in-2017.html

下面只是亮度
但能否可以看到還不知道  

有的是靠太陽太近或南半球

2P/Encke
http://aerith.net/comet/catalog/0002P/2017.html
(http://aerith.net/comet/catalog/0002P/2017-mag1.gif)

45p
http://www.aerith.net/comet/catalog/0045P/2016.html

(http://www.aerith.net/comet/catalog/0045P/2016-mag.gif)

41p

http://www.aerith.net/comet/catalog/0041P/2017.html
(http://www.aerith.net/comet/catalog/0041P/2017-mag.gif)


2018年
21p
http://www.aerith.net/comet/catalog/0021P/2018.html
(http://www.aerith.net/comet/catalog/0021P/2018-mag.gif)

https://groups.yahoo.com/neo/groups/comets-ml/conversations/messages/25931

http://astrocometas.blogspot.tw/

(https://4.bp.blogspot.com/-9NtSno4gOAw/WB-ulMrPytI/AAAAAAAAA0Y/Kf2F8SHcK-IpzeBdHeGOoTxAoFikKXDzgCLcB/s1600/curva%2Bc2015v2.png)

目前就 

45p   2017/ 2
http://www.aerith.net/comet/catalog/0045P/2016.html

41p 2017 /4 

http://www.aerith.net/comet/catalog/0041P/2017.html


http://www.waa.at/hotspots/kometen/41p/index.html

過去幾年 41p 回歸  亮度 比較
http://aerith.net/comet/catalog/0041P/index.html
(http://aerith.net/comet/catalog/0041P/curve.gif)

c2015 v2
http://www.aerith.net/comet/catalog/2015V2/2015V2.html



比較亮 

C/2016 U1 ( NEOWISE )
http://www.aerith.net/comet/catalog/2016U1/2016U1.html

(http://www.aerith.net/comet/catalog/2016U1/mag.gif)

好像比預估亮一些 

最後亮度不知會如何

C/2015 ER61 ( PanSTARRS )

http://www.aerith.net/comet/catalog/2015ER61/2015ER61.html

(http://www.aerith.net/comet/catalog/2015ER61/mag.gif)

WIKI
1.079 AU    Earth approach    2017/04/04    
https://en.wikipedia.org/wiki/C/2015_ER61_%28PANSTARRS%29

https://groups.yahoo.com/neo/groups/comets-ml/conversations/messages/25954
  

2017
4 月看來
 41P 5等
C/2015 ER61 (PanSTARRS) 7 等   
C/2015 V2 (Johnson)  7    等

http://blog.astronomypage.ru/

Комета C/2015 V2 (Johnson)

(http://blog.astronomypage.ru/wp-content/uploads/2016/12/2015V2-1m.jpg)


http://cometografia.es/
(http://cometografia.es/wp-content/photo-gallery/2016/thumb/2016U1&2015V2_161201_1200.jpg)
 C/2016 U1   C/2015 V2 (Johnson)

業餘天文學家發現彗星 , 國外整理資訊

http://www.cometchaser.de/discoverystories/Comet-discoverers.html

Johnson彗星這星期太陽一落山就下山了……

聰奇兄拍的 45p

from facebook
https://www.facebook.com/photo.php?fbid=1333729123313800&set=gm.1815569962064709&type=3&theater

(https://scontent-tpe1-1.xx.fbcdn.net/v/t1.0-9/15747898_1333729123313800_1523868312996040862_n.jpg?oh=b11fef5f4a755cace6c32f06c2e1fba7&oe=58EB61DB)


http://heavens-above.com/comet.aspx?cid=45P
(http://heavens-above.com/skychart.ashx?size=400&FOV=60&innerFOV=5&MaxMag=5&RA=-3.25675182524171&DEC=-20.332108199428&mjd=57748.2837347556&cn=1&cl=1&cul=zh)

http://www.skyandtelescope.com/observing/worldwide-4p-comet-campaign-needs-your-photos/
(http://www.skyandtelescope.com/wp-content/uploads/Comet45p_DecJan.jpg)

===

國外拍的

spaceweathergallery

http://spaceweathergallery.com/indiv_upload.php?upload_id=131710&PHPSESSID=ppivus0l4creihrtq4ui09e332
(http://0e33611cb8e6da737d5c-e13b5a910e105e07f9070866adaae10b.r15.cf1.rackcdn.com/Efrain-Morales-Rivera-45P-122316-2314ut-L14m-EMr_1482590890_lg.jpg)

Comet 45P / Honda-Mrkos-Pajdusakova on December 23rd, 23:14ut. Its tail seems to be spliting now.

===

http://astrobob.areavoices.com/2016/12/25/one-last-christmas-present-comet-45phonda-mrkos-pajdusakova/

(https://i0.wp.com/astrobob.areavoices.com/files/2016/12/45P-Dec-23-Jose-Chambo.jpg?w=882)

Comet 45P/Honda-Mrkos-Pajdusakova captured in its delicate beauty on Dec. 23, 2016. A skinny gas or ion tail extends to the east of the blue-green coma. The comet is currently visible near the end of evening twilight. Credit: Jose Chambo

45p
http://www.aerith.net/comet/catalog/0045P/2016.html
(http://www.aerith.net/comet/catalog/0045P/2016-chart.gif)
(http://www.aerith.net/comet/catalog/0045P/2016-mag.gif)

冠夫兄拍
Tao150拍

https://www.facebook.com/photo.php?fbid=10154915002964602&set=a.10151775705624602.1073741827.708229601&type=3&theater&notif_t=photo_reply&notif_id=1482796443015664

(https://scontent-tpe1-1.xx.fbcdn.net/v/t31.0-8/q90/s960x960/15774625_10154915002964602_5852664942892856006_o.jpg?oh=fb9d436b59a5ba26680568545d9466d9&oe=58E2D289)

1/1  45p & moon

http://britastro.org/computing/charts_comet.html


http://britastro.org/computing/ch/Honda-Mrkos-Pajdusakova_[45P]_2016Nov01Dec01.html
(http://britastro.org/computing/ch/Honda-Mrkos-Pajdusakova_[45P]_2017Jan01Feb01.png)

2016/12/31

http://spaceweathergallery.com/indiv_upload.php?upload_id=131900

(http://0e33611cb8e6da737d5c-e13b5a910e105e07f9070866adaae10b.r15.cf1.rackcdn.com/Sven-Melchert-2012-12-31_45P-Moon_Melchert_1483210755_lg.jpg)

見晴拍到

https://www.facebook.com/photo.php?fbid=1547840731898393&set=pcb.1547841608564972&type=3&theater

(https://scontent-tpe1-1.xx.fbcdn.net/v/t1.0-9/15894351_1547840731898393_8309846364115813112_n.jpg?oh=afd997f724ca02910f8eccc340655842&oe=58E5CCB4)

UPDATE

http://www.astroforum.nl/forum/visueel-waarnemen/waarnemen-algemeen/1324638-waarnemingen-komeet-45p-honda%C2%96mrkos%C2%96pajdusakova

快開始變暗

http://astrobob.areavoices.com/2017/02/05/3-mornings-left-to-see-comet-45ph-m-p-in-binoculars/


(http://www.aerith.net/comet/catalog/0045P/2016-mag.gif)

UPDATE
http://cometchasing.skyhound.com/
(http://familystar.org.tw/forum/index.php?action=dlattach;topic=27376.0;attach=83477;image)

http://www.universetoday.com/133188/watch-comet-45p-honda-mrkos-pajdusakova-fly-past-earth-week/

(http://www.universetoday.com/wp-content/uploads/2017/02/32338064180_e479538ebe_z.jpg)

A recent image of Comet 45P from February 4th. Image credit and copyright: Hisayoshi Kato.

(http://www.universetoday.com/wp-content/uploads/2017/02/Path-SN-768x414.jpg)

(http://www.universetoday.com/wp-content/uploads/2017/02/4AM-30-n-768x549.jpg)

slooh 會播 45p 本田彗星
http://live.slooh.com/stadium/live/close-approach-of-comet-45p


Close Approach of Comet 45P


Comet 45P approaches Earth - Closest approach on Feb. 11th
https://www.sott.net/article/341720-Comet-45P-approaches-Earth-Closest-approach-on-Feb-11th

(http://www.spaceweather.com/images2017/10feb17/skymap.gif?PHPSESSID=l5p2rqj2hvs1t673tsj885u9m5)

(http://www.spaceweather.com/images2017/11feb17/skymap.gif?PHPSESSID=l5p2rqj2hvs1t673tsj885u9m5)

(http://www.spaceweather.com/images2017/12feb17/skymap.gif?PHPSESSID=l5p2rqj2hvs1t673tsj885u9m5)

老大拍的彗星
FROM FACEBOOK

https://www.facebook.com/photo.php?fbid=10158243012680343&set=pcb.1316291701760990&type=3&theater

45P
(https://scontent-tpe1-1.xx.fbcdn.net/v/t1.0-9/16729210_10158243012680343_3290687895528125907_n.jpg?oh=d5d29e61747fcfccd44c9ec524ee4a31&oe=593B152A)
(https://www.facebook.com/photo.php?fbid=10158243012665343&set=pcb.1316291701760990&type=3&theater)

http://tamweb.tam.gov.tw/v3/mobile/content.asp?mtype=c1&idx=1244

45P/Honda–Mrkos–Pajdušáková彗星將在2/11的16:20以0.08318AU的距離近掠地球，相當於地月平均距離的31倍左右

..

　估計本次最接近時，最亮可達6等左右，此時位在武仙座至北冕座之間，天亮前可見於東方天空，用10×50以上的雙筒望遠鏡可以輕易觀察到，但用天文望遠鏡或天文攝影方式觀察會更好。但觀察地點必須選擇光害少的地方，時間挑選沒有月光影響的條件下，才比較容易看到。因為在天空中的位置變動劇烈，使彗星的升起時間會快速提前，意味著日出前的仰角高度也快速增加，甚至到2月下旬至3月時，已為整晚可見的狀態，除了亮度逐漸下降之外，其他觀測條件倒是愈來愈好。右上方圖片顯示2/10-2/14期間每日凌晨5時的45P彗星位置。

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/
(http://www.skyandtelescope.com/wp-content/uploads/45P-midFeb-redo-Stellarium.jpg)


(http://www.skyandtelescope.com/wp-content/uploads/45P-midFeb-SkyMAP-ST.jpg)

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 .

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.
 

(http://0e33611cb8e6da737d5c-e13b5a910e105e07f9070866adaae10b.r15.cf1.rackcdn.com/Marion-Haligowski-Comet-45P-021317-41x20-sec-3_1487210638_lg.jpg)

http://spaceweathergallery.com/indiv_upload.php?upload_id=133006
(http://0e33611cb8e6da737d5c-e13b5a910e105e07f9070866adaae10b.r15.cf1.rackcdn.com/michael-jAcger-45uv_0139_2_1487203338_lg.jpg)
單張 35s 

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


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

Arecibo radar captures revealing images of Comet 45P

(http://astronomynow.com/wp-content/uploads/2017/02/Comet45PHMPgif.gif)

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

(http://www.cloudynights.com/uploads/gallery/album_7072/sml_gallery_243447_7072_74122.jpg)
vakulenko_sergiy
02.16.2017, ED80, OSC QHY8 bin2, 75x60sec


(http://blog.astroccd.org/wp-content/uploads/2017/02/2017_02_16_45pHMP-ed80-qhy8-x75-animation1.gif)

果然很暗 ..


FB 

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

(https://scontent-tpe1-1.xx.fbcdn.net/v/t1.0-9/16864089_1407078585989975_8022282615108514185_n.jpg?oh=9e3a6763bc31f54b9d3dae169bb38f9f&oe=593E8BC3)

(https://scontent-tpe1-1.xx.fbcdn.net/v/t1.0-9/16681778_1407078822656618_7912753262191402377_n.jpg?oh=c827395f9a1f6c328f6adccbba305429&oe=5930E4F6)

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~

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.

45p   41p

https://twitter.com/katsumi_comet