NGC 6384 barred spiral galaxy located about 60 million light-years away in the constellation Ophiuchus. SAB(r)bc, inclined by an angle of 47°, NGC 6384 is now classified as a transition object (T2), which is thought to be a LINER-type galaxy whose emission-line spectra is contaminated by H II regions in the nucleus.
from Sunnyvale CA, 6/27/2015 VC200L+Reducer and EOS Rebel XSi 3 min x 10 subs, 30 dark, 20 flat, 20 flat-dark superimposed with the shot taken in 2011 from Santa Cruz Maintain area: 1 min x 10 subs, 20 dark and 20 flat
VC200L+Reducer EOS KISS X2 1.5 min exposure, 136 subs, 30 dark and 20 flat, 20 flat dark 6/23/2015 from Sunnyvale CA USA
from Sunnyvale CA USA on 7/10~11/2015 VC200L+reducerand EOS XS2 3 min x 64 subs = 3 hours 12 minutes 30 dark 20 flat 20 flat dark 2X Drizzle
VC200L 1800mm FL and EOS XSI at ISO1600 10 darks and 15 lights 3min x 10 subs
VC200L 1800mm FL and EOS XSI at ISO1600 10 darks and 15 flats 3min x 60 subs
VC200L 1800mm FL and EOS XSI at ISO1600 10 darks and 15 lights 3min x 60 subs NGC 1514 is a planetary nebula that was discovered by William Herschel on November 13, 1790, describing it “A most singular phaenomenon” and forcing him to rethink his ideas on the construction of the heavens. Up until this point Herschel was convinced that all nebulae consisted of masses of stars too remote to resolve, but now here was a single star “surrounded with a faintly luminous atmosphere.” He went on to conclude “Our judgement I may venture to say, will be, that the nebulosity about the star is not of a starry nature”. It has since been conjectured that the nebula in fact envelops a tightly orbiting double star with a period of up to 10 days. Gas is presumably expanding away from the larger star of the pair. NGC 1514 is also known as Crystal Ball Nebula. http://ja.wikipedia.org/wiki/%E3%83%AB%E3%83%9C%E3%82%B7%E3%83%A5%E3%83%BB%E3%82%B3%E3%83%9B%E3%83%BC%E3%83%86%E3%82%AF ルボシュ・コホーテク ルボシュ・コホーテク(Luboš Kohoutek、1935年1月29日 – ）はチェコの天文学者。多くの彗星、小惑星を発見した。 モラヴィアのZábřehに生まれた。ブルノとプラハの大学で物理学と天文学を学んだ後、チェコスロバキア科学アカデミーの天文学研究所で働いた。1967年にルボシュ・ペレクと1036の惑星状星雲を収録したカタログを出版した。ドイツのハンブルク天文台で働き、1968年のチェコ事件が起こると、ドイツに留まることを決めた。1970年代にコホーテク彗星 (C/1973 E1)などの発見で有名になった。その後スペインやチリの天文台で惑星状星雲の観測を行い、2001年に引退した。 小惑星(1850)コホーテクはコホーテクの功績を記念して命名された。 多くの彗星の発見が最も有名である。大彗星になると期待されたコホーテク彗星 (C/1973 E1)のほか発見した彗星には、周期彗星の75P/コホーテク彗星 (75P)、76P/ウェスト・コホーテク・池村彗星がある。 またアポロ群の（1865) Cerberusを含む75の小惑星を発見した。 http://en.wikipedia.org/wiki/Lubo%C5%A1_Kohoutek Title: A study of planetary nebula NGC 1514. I. The double-star hypothesis for the planetary nucleus based on photoelectric photometry Authors: Kohoutek, L. Journal: Bulletin of the Astronomical Institute of Czechoslovakia, vol. 18, p.103 Bibliographic Code: 1967BAICz..18..103K http://adsabs.harvard.edu/full/1967BAICz..18..103K Title: A study of planetary nebula NGC 1514. II. Spectroscopic investigation of the central star Authors: Kohoutek, L. & Hekela, J. Journal: Bulletin of the Astronomical Institute of Czechoslovakia, vol. 18, p.203 http://adsabs.harvard.edu/full/1967BAICz..18..203K Title: A study of planetary nebula NGC 1514. III. Isophotic contours and the spatial model of the nebula Authors: Kohoutek, L. Publication: Bulletin of the Astronomical Institute of Czechoslovakia, vol. 19, p.285 http://adsabs.harvard.edu/full/1967BAICz..18..103K THE DISCOVERY OF INFRARED RINGS IN THE PLANETARY NEBULA NGC 1514 DURING THE WISE ALL-SKY SURVEY Michael E. Ressler1, Martin Cohen2, Stefanie Wachter3, D. W. Hoard3, Amy K. Mainzer1, and Edward L. Wright4 1 Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA; Michael.E.Ressler@jpl.nasa.gov 2 Monterey Institute for Research in Astronomy, 200 8th Street, Marina, CA 93933, USA 3 Spitzer Science Center, California Institute of Technology, 1200 E California Blvd, Pasadena, CA 91125, USA 4 UCLA Astronomy, P.O. Box 951547, Los Angeles, CA 90095, USA Received 2010 August 13; accepted 2010 September 20; published 2010 November 9 ABSTRACT We report the discovery of a pair of infrared, axisymmetric rings in the planetary nebula NGC 1514 during the course of theWISE all-sky mid-infrared survey. Similar structures are seen at visible wavelengths in objects such as the “Engraved Hourglass Nebula” (MyCn 18) and the “Southern Crab Nebula” (Hen 2-104). However, in NGC 1514 we see only a single pair of rings and they are easily observed only in the mid-infrared. These rings are roughly 0.2 pc in diameter, are separated by 0.05 pc, and are dominated by dust emission with a characteristic temperature of 160 K.We compare the morphology and color of the rings to the other nebular structures seen at visible, far-infrared, and radio wavelengths, and close with a discussion of a physical model and formation scenario for NGC 1514. Key words: infrared: stars – planetary nebulae: individual (NGC 1514) – surveys http://iopscience.iop.org/1538-3881/140/6/1882
VC200L 1800mm FL and EOS XSI at ISO1600 10 darks and 15 flats 3min x 200 subs
IC 342 is an intermediate spiral galaxy in the constellation Camelopardalis. It can readily be detected even with binoculars. The dust of the Milky Way makes it difficult to determine the precise distance; modern estimates range from about 7 Mly to about 11 Mly. from Wikipedia IC 342は、きりん座の銀河である。この銀河は地球より700万光年離れている。また、銀河赤道の近くに位置している。塵による掩蔽は、アマチュアや天文学者が観察する事を困難にしている[1]。 IC 342は、マフェイ銀河群（局部銀河群に最も近い銀河群の1つ）の中で最も明るい2つの銀河のうちの1つである。この銀河は1895年にウィリアム・デニングによって発見された。エドウィン・ハッブルは、当初は局部銀河群に属していると考えたが、後年この銀河は局部銀河群の外にある事がわかった。 1935年にハーロー・シャプレーは、この銀河の見かけの大きさ（角直径）は、アンドロメダ銀河（M31）やさんかく座銀河（M33）に次いで3番目に大きく、満月よりも広い、と発表した。なお、この順位は大マゼラン雲や小マゼラン雲を含めていない。この銀河は、H II核を持つ。