C/2015 ER61 ( PanSTARRS ) 分裂 ??

[peter]

==
C/2015 ER61 ( PanSTARRS )  分裂 ??
==

C/2015 ER61 ( PanSTARRS )  可能變亮
==
full list
http://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=24999.0

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C/2015 ER61 ( PanSTARRS )

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

[peter]

FROM

http://blog.astronomypage.ru/





5/1 靠海王星

[peter]

0415 

[peter]

http://spaceweathergallery.com/comet_gallery.html

[peter]

C/2015 ER61 ( PanSTARRS )  可能變亮

https://groups.yahoo.com/neo/groups/comets-ml/conversations/messages/26468

還不確定真假

[peter]

C/2015 ER61 (PANSTARRS):
2017 Apr. 4.17 UT: m1=7.4, Dia.=4', DC=6, 10x50B.
[ Possible outburst. The comet shows a higher DC,

C/2015 V2 (Johnson ):
2017 Apr. 4.12 UT: m1=9.4, Dia.=4', DC=4,

C/2017 E1 (Borisov):
2017 Apr. 4.19 UT: m1=8.5, Dia.=5', DC=2, 20 cm SCT (100x).

C/2017 E4 (Lovejoy):
2017 Apr. 4.16 UT: m1=6.9, Dia.=4', DC=7, 10x50B.

41P/Tuttle-Giacobini-Kresak:
2017 Apr. 4.10 UT: m1=6.4, Dia.=25', DC=3, 12x45 monocular.

[peter]

https://www.facebook.com/photo.php?fbid=1451780808226053&set=p.1451780808226053&type=3&theater


FB 

Jack Tsai    昆陽拍 4/3拍的C/2015 ER61

[peter]

http://spaceweathergallery.com/indiv_upload.php?upload_id=134619&PHPSESSID=hiqq4ru55f6qhv4c7ul1tu5ut0

 Comet C/2015ER61 Panstarrs
Taken by Gerald Rhemann on April 5, 2017 @ Farm Tivoli, Namibia, SW-Africa

[peter]

http://www.itelescope.net/sky-alerts/2017/4/5/alert-comet-c2015-er61-panstarrs-is-in-outburst.html




http://cometografia.es/2015er61-panstarrs-20170404/

[peter]

https://groups.yahoo.com/neo/groups/CometObs/conversations/messages/7096

41P/Tuttle-Giacobini-Kresak:2017 Apr. 4.10 UT: m1=6.4, Dia.=25', DC=3, 12x45 monocular.

C/2017 E4 (Lovejoy):2017 Apr. 4.16 UT: m1=6.9, Dia.=4', DC=7, 10x50B.

C/2015 ER61 (PANSTARRS):2017 Apr. 4.17 UT: m1=7.4, Dia.=4', DC=6, 10x50B.

C/2017 E1 (Borisov):2017 Apr. 4.19 UT: m1=8.5, Dia.=5', DC=2, 20 cm SCT (100x).

C/2015 V2 (Johnson ):2017 Apr. 4.12 UT: m1=9.4, Dia.=4', DC=4,

[peter]

http://astroblogger.blogspot.tw/2017/04/comet-c2015-er61-panstarrs-is-in.html

Comet C/2015 ER61 is confirmed to be in outburst, with reports of magnitudes between 7.4 and 6.5, up from a pre-outburst level of 8.4.

[peter]

[peter]

http://www.skyandtelescope.com/astronomy-news/comet-er61-panstarrs-in-outburst-binocular-bright/

[peter]

TERRY LOVEJOY 本人拍ER61

目前也很亮


https://www.facebook.com/photo.php?fbid=820377468113958&set=a.105859272899118.15766.100004251372422&type=3&theater

combining 90 images of 8 seconds exposure using the Qhyccd 183c camera and Starizona Hyperstar with a Celeston C14 taken at 18:12hrs, April 6 UT. Comet was easily visible in binoculars at the time

[peter]

C/2015 ER61  為何突然變亮??

是否分裂??