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A Tale of Two Stars877 viewsHere are basic spectra from two familiar stars in the night sky. Vega's spectra is on the left and basically has weak spectral lines based mostly on the Hydrogen Balmer series. This is indicative of a fairly young, hot star. Betelgeuse's spectra is far more complex. We can see spectral lines for Barium, Calcium, Iron and Magnesium and compounds like Vandium Oxide and Titanium Oxide indicative of a star near the end of its life. Data collected with amateur equipment and processed through RSpec software.
Heart Nebula872 viewsThe Heart Nebula, IC 1805, Sh2-190, lies some 7500 light years away from Earth and is located in the Perseus arm of the Galaxy in the constellation Cassiopeia. This is an emission nebula showing glowing gas and darker dust lanes. The open cluster of stars near the center known as Melotte 15 illuminates the nebula. This is a single 7min exposure thru an FSQ106/Ha filter from Tzec Maun Observatory in Mayhill NM.
Antares, M4 and the Rho Oph cloud866 viewsAntares is the bright star at the lower left of the image. It is over 700 times the diameter of our Sun. Globular cluster Messier 4 is seen on the lower right. The Rho Ophiuchus cloud complex is the closest star forming region to our solar system (~430 lght years away). The cloud complex is much larger than can fit in this image. Blue reflection nebula IC 4605 seen about mid-left, and IC4603 seen middle-top are created by interstellar dust. Borg 71FL astrograph with a modified Canon XS DSLR 36min exp.
M27862 viewsThis is 6 - 8 min guided shots with a ST-2000XCM camera on Tak FS102 Mounted on a G11
Polaris Star Trails - Second Try857 viewsThis is a 30 min. shot of polaris. You can see the lights from the steet I shot this over starting to brighten up the bottom of the image.
The Flaming Star Nebula855 viewsThe Flaming Star Nebula, IC 405, is located in the Constellation Auriga. The nebula is illuminated by the variable star AE Aurigae that is slowly passing thru the nebula but in fact did not condense from the surrounding nebula. The image acquired with a Canon 20Da DSLR (ISO 800) and a Takahashi E 180 astrograph. Total exposure time of 2.5 hrs (30 X 300 seconds lights calibrated, aligned, stacked, and stretched (DDP) in Images Plus 3.80 and further processed in Adobe Photoshop CS4).
The Veil Nebula853 viewsNGC 6992, part of the Veil Nebula in Cygnus, is the remains of a large star that exploded in a Type II supernova. The total exposure is 2 hr 25 min (29 x 300 sec lights, 30 x 300 sec darks, 64 flats; Canon 20Da, Takahashi E-180 astrograph, Paramount; Images Plus 3.82B and Adobe Photoshop CS5)
IC 1805850 viewsIC 1805 in Cassiopeia. The loose open cluster in the center of IC 1805 is Melotte 15. A 3-minute exposure taken with a Takahashi Epsilon 180 f2.8 with a Canon 20Da DSLR.
NGC 6559, IC 1274/75, and IC 4685 region in Ha850 viewsThe IC 1274/75, IC 4685 and NGC 6559 complex imaged in Ha are located in the constellation Sagittarius (visible light photo previously posted). Just to the right of NGC 6559 (the brightest emission nebulosity slightly below left of center in the image) in the large HII region IC 4685 is the serpentine structure of the dark nebula Barnard 303. Total exposure 1 ½ hours (TeleVue 85 refractor; SBIG ST 2000 ccd camera @ -13 degrees; Paramount; Baader 35 nm bandwidth Ha filter; 30 x 5 min lights; 35 darks; 41 flats).
Trifid Nebula (M20) in Living Color!849 viewsHere is another summertime favorite, the Trifid Nebula (Messier 20) done with a Takahashi Epsilon 180 (f2.8) with SBIG 2000 single shot color camera using the Tzec Maun scopes in Australia. This is a single 10-minute exposure.
NGC7000 American Nebula848 viewsThis was taken with the stock Rebel XT lens at 55mm. It has been croped.
M1847 viewsFirst light Shot from me ST-6 and new Mount. This is a single 4 minute shot at prime focus through my C8. Needs more time and better seeing.
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