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About elpajare

  • Rank
  • Birthday 27/01/52

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    Skywatcher 200/800 - f4

    Skywatcher 80/400 - f5

    Atik Infinity color + ATIK Software
  • Location
    Begur - Spain
  1. Also Caldwell 21, this galaxy is similar in size and brightness, and often compared to, the Milky Way's satellite galaxy, the Large Magellanic Cloud (LMC). NGC 4449 has a general bar shape, also characteristic of the LMC, with scattered young blue star clusters. Unlike the Large Magellanic Cloud, however, NGC 4449 is considered a starburst galaxy due to its high rate of star formation (twice the one of the LMC)[4] and includes several massive and young star clusters, one of them in the galaxy's center. Photos of the galaxy show the pinkish glow of atomic hydrogen gas, the telltale tracer of massive star forming regions. NGC 4449 is surrounded by a large envelope of neutral hydrogen that extends over an area of 75 arc minutes (14 times larger than the optical diameter of the galaxy). The envelope shows distortions and irregularities likely caused by interactions with nearby galaxies. (Wikipedia) NGC 4449 also Caldwell 21/ GX / CANES VENATICI/ EXPO= 20X15" stack/ FWHM=6,5/ ALTIT= 34º/ Moon=0 Skywatcher/f4 + ATIK Infinity + Infinity software
  2. Thanks to all. Nice capture, Don. Markarian's is a beautiful object and very appropiated to start showing astronomy amateur people what are over there.
  3. Messier 84 is located near the border with the constellation Coma Berenices. It can be found halfway along the line from Denebola in Leo to Vindemiatrix in Virgo. Another Messier object, M86, can be seen just 17 arc minutes to the east of M84. The two galaxies appear in the same field of view in binoculars and small telescopes. In small telescopes, the galaxies appear as small, oval-shaped patches of light with brighter centres. They are best seen in medium-sized and large telescopes. In 8-inch telescopes, several other galaxies can be seen in the vicinity, including NGC 4435, NGC 4388, NGC 4402 and NGC 4438. The giant elliptical galaxy M87 lies about 1.5 degrees to the southeast of M84 and M86 This is the end of Markarian's chain and probably, the most espectacular end possible. EXPO= 17X15" stack/ FWHM=3,7/ ALTIT= 49º/ Moon=0 Skywatcher /f4 + ATIK Infinity color+ Atik software
  4. NGC 4435 and NGC 4438 lie in a string of galaxies across the heart of the cluster known as Markarian's Chain. They were nicknamed "The Eyes" by the 19th-century observer L. S. Copeland. This interacting galaxies lie in the heart of the Virgo cluster. If either was a spiral, such structure was disturbed long ago by gravitational forces due to close encounters with other galaxies and with the cluster's heavyweight, M 86. MESSIER 86 is linked by several filaments of ionized gas to the severely disrupted spiral galaxy NGC 4438 and shows some gas and interstellar dust that may have been stripped, as well as the gas on those filaments, of it. It is suffering ram-pressure stripping as it moves at high speed through Virgo's intracluster medium, losing its interstellar medium as it moves through it leaving behind a very long trail of hot gas (Wikipedia) NGC 4435 Y 4438 / GX / EYES VIRGO / EXPO= 17X15" stack/ FWHM=3,7/ ALTIT= 49º/ Moon=0 Skywatcher /f4 + ATIK Infinity color+ Atik software
  5. Markarian's Chain is a stretch of galaxies that forms part of the Virgo Cluster. It is called "chain" because, when viewed from Earth, the galaxies lie along a smoothly curved line. Charles Messier first discovered two of the galaxies, M84 and M86, in the year 1781. The other galaxies seen in the chain are first mentioned in John L. E. Dreyer's New General Catalogue, published in 1888. It was ultimately named after the Armenian astrophysicist, B. E. Markarian, who discovered their common motion in the early 1960s. This is the part corresponding to Coma Berenices constellation NGC 4477 Y OTRAS / MARKARIANS CHAIN 1 GX/ COMA BERENICES/ EXPO= 17X15" stack/ FWHM=3,7/ ALTIT= 49º/ Moon=0 Skywatcher /f4 + ATIK Infinity color+ Atik software
  6. Lodestar is a very good camera maybe fast reflector makes the difference? Or maybe the stack software is the responsable? I don know. Seeing during my shoot was very good, FWHM 2,6 rarely appears here. Infinity has a stack system that combines addition with mean ( I think) and 20 stacks makes a good difference. This kind of faint objets looks very well with Infinity instead HII zones are a challenge for it. I have very poor results here.
  7. At apparent magnitude +9.7, NGC 4236 is a tough galaxy for small scopes but rewarding if you can catch it. A 80mm (3.1-inch) telescope reveals a thin needle haze of light that's best seen at low powers using averted vision. Through a 200mm (8-inch) scope the galaxy appears large and faint but with a brighter centre that hints at mottling. Since it spans in total 22 x 7 arc minutes and not far from edge-on, NGC 4236 appears noticeable thin. In larger sized amateur scopes, the galaxy shows much mottling and knotty details along its length with a slightly brighter oval shaped centre. A pleasant view. NGC 4236 is located 11.7 Million light years distant. It has a radius of 75,000 light-years and is estimated to contain more than 100 billion stars (Freestarcharts) NGC 4236 / GX/ DRACO/ Expo= 20X20" stack/ FWHM=2,6 / ALTIT=57º/ Moon=0 Skywatcher /f4 + ATIK Infinity + Infinity software
  8. Galaxies and double stars with the dark sky as background. HD 105288: This star is part of a double or multiple star system, but its orbit is not known. Its magitude +12.0 secondary component appears 34.5 arcseconds away NGC 4111 is a 10th magnitude Spiral Galaxy appearing in the constellation Canes Venatici. It is 48 million light years from our solar system. UGC 7089 is a 14th magnitude Spiral Galaxy appearing in the constellation Ursa Major. It is 38 million light years from our solar system Among other.... NGC 4111 / GX / CANES VENATICI / Expo=20X15 " stack / FWHM =4,6 / Altit= 49º / Moon=0 Skywatcher f4 + ATIK Infinity color+ Infinity software
  9. On March 18, 1781, Charles Messier discovered eight nebulous objects near the border of Virgo and Coma Berenices. He catalogued the last of these objects as M 91, but recorded its position erroneously. Thus, for a long time, M 91 was a "missing" Messier object. Although catalogued by William Herschel as H II.120 in 1784, Herschel found nothing there, and instead suspected that M 91 might have been the faint, magnitude 11.3 spiral galaxy NGC 4571 (Herschel's H III.602). Others suggested that M 91 was that was a duplicate observation of some other Messier object (Owen Gingerich suspected M 58), or that M 91 was actually a comet. Texas amateur William C. Williams finally figured it out in 1969. Messier had recorded M 91's position relative to M 89, rather than M 58, as he had thought; and the true identity of M 91 was finally uncovered as NGC 4548. M 91 Y NGC 4548 / GX / COMA BERENICES / Expo=23X15" stack / FWHM=2,8 / Altit=42º/ Moon=0 Skywatcher f4/ ATIK Infinity color + Infinity software
  10. Thanks for your comment This photo was taken with 25 expo of 12" each one stacked with the Infinity software. Infinity works exceptionally well in this kind of objects and his software helps a lot to achieve details easily.
  11. In amateur telescopes, Messier 106 is a fine, bright, magnitude 8.4 galaxy. Its mottled, concentrated 5' x 3' central region contains a 1' diameter core with a bright, non-stellar nucleus. The outer halo is much fainter and more diffuse, extending to 19' x 8'. M 106 Y NGC 4258 Y 4231, 4232 Y 4248 / GX / CANES VENATICI/ EXPO: 25X12"/ FWHM=3,9 / Altritud=41º / Moon=0 Skywatcher /f4 + ATIK Infinity + Infinity software
  12. Congratulations, Paul.
  13. At a distance of only 25 million light-years it dominates the frame, spotting a peculiar arrangement of structures, young blue star clusters and star forming regions, suggesting that NGC 3239 (aka Arp 263) is the result of a galaxy merger. Newton 200/f4 + Atik Infinity + Atik software NGC 3239 / GX/ LEO / Expo: 20X15" / FWHM= 3,2/ Altitud: 39º/ Moon=0
  14. Fantastic work Martin, as always.
  15. It depends on the observation window. Mine is oriented to E-SE and I have to start soon Thanks for viewing and commenting.