21P / Giacobini-Zinner and 38P / Stephan-Oterma with Sigma 105mmF1.4 DG HSM Art September 22, 2018 Dark Version

            The comet 21P / Giacobini-Zinner has passed the perihelion, 1.01 AU from Sun and the closest location to Earth, 0.39 on September 10, 2018.  It is going far away from Sun and Earth on the orbit of period 6.6 years.  It will come nearer to Earth on September 18, 2058.  

The comet was drifting toward south southeast in Gemini near the border to Monoceros at the night.  White coma was spotty sharp, and greenish coma was round and big.  Yellowish dust tail was still long toward west northwest and curving toward north.  Ion tail was not so clear as before.  North is up, and east is to the left.  

Earth distance 0.416 AU
Sun distance 1.029 AU

38P Stephan-Oterma was also on the frame, near the right edge.  I did not know it, but it was there unintendedly in this colorful area.  

equipment: Sigma 105mm F1.4 DG HSM Art and Canon EOS 6D-sp4, modified by Seo-san on Takahashi EM-200FG-Temma2Z BL, autoguided at the center of the condensation of the coma with William Optics Star 71mm f/4.9 Blue Edition, Stalightxpress Lodestar X2, and PHD2 Guiding

exposure: 3 times x 840 seconds, 3 x 240 sec, and 5 x 60 seconds at ISO 1,600 and f/3.2

The first exposure started at 18:18:23 September 22, 2018UTC.  

site: 1,001m above sea level at lat. 37 21 05 North and long. 140 42 53 East in the parking near Mt. Otakine Takatsuka in Fukushima 福島県高塚高原大滝根山

Taken in: 日本 / 福島県 / 田村市 (show map)

Taken on: September 22, 2018

Tags:

Astrometrydotnet:id=nova2808310

Astrometrydotnet:status=solved

Sets appears in: • Comets • Auriga and Gemini more » • Orion and Eridanus • Monoceros « less

Groups appears in: • After Dark - Night Photography • Astronomy more » • Night Sky, The • Deep Space Astrophotography • Amateur Astronomy • astrometry • Official National Geographic Group • Astronomy for all • Wide Field Astrophotography - Starry Skies • Astrophotography - Comets and Asteroids • Astronomy Photos • Astrofotografia / Astrophotography • BBC Sky at Night and Stargazing Live • Astrofotógrafos del Mundo / World´s Astrophotographers • Universe Today • Into the Night Photography • in explore • 6,000 Views Unlimited 6000 • Amateur Astro-Photography • Astrophotographie • CIELOS Y NUBES, SKIES AND CLOUDS • Enthusiast Photographers Magazine « less

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