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The sunspot complex, AR3664 and AR3668, is around 200, 000km or 15-18 Earth diameters across.
The Sun has been playing hide and seek playing hard to get these past days. I've caught brief glimpses of these huge sunspot groups with my solar filtered naked eyes or with filtered 10x42ED binoculars through thin cloud or in brief breaks, none warranted setting up a scope until today. I've added a small blue dot to scale the group against the Earth. the group is slightly foreshortened because we are now viewing it at an angle as it moves towards the solar limb. This group is slightly bigger than the group that spawned the Carrington event in 1859.
Joe Cali
Amateur astronomer since 1978...................Web site :http://joe-cali.com/ Scopes: ATM 18" Dob, Vixen VC200L, ATM 6"f7, Stellarvue 102ED, Saxon ED80, WO M70 ED, Orion 102 Maksutov, ST80. Mounts: Takahashi EM-200, iOptron iEQ45, Push dobsonian with Nexus DSC, three homemade EQ's. Eyepieces: TV Naglers 31, 17, 12, 7; Denkmeier D21 & D14; Pentax XW10, XW5, Unitron 40mm Kellner, Meade Or 25,12 Cameras : Pentax K1, K5, K01, K10D / VIDEO CAMS : TacosBD, Lihmsec. Cam/guider/controllers: Lacerta MGEN 3, SW Synguider, Simulation Curriculum SkyFi 3+Sky safari Memberships Astronomical Association of Queensland; RASNZ Occultations Section; Single Exposure Milky Way Facebook Group (Moderator) (12k members), The Sky Searchers (moderator)
