Tag Archives: Antares

Antares and Clouds

6мар

Antares, also known by its Bayer designation Alpha Scorpii (abbreviated to α Scorpii or α Sco), is the seventeenth brightest star in the nighttime sky and the brightest star in the constellation Scorpius, and is often referred to as “the heart of the scorpion”. Along with Aldebaran, Regulus, and Fomalhaut, Antares comprises the group known as the ‘Royal stars of Persia’. It is one of the four brightest stars near the ecliptic.

Imaging telescopes or lenses: PENTAX 100SDUF
Imaging cameras: Canon KissDN改
Mounts: Vixen GPD Skysensor 2000PC
Guiding telescopes or lenses: Meade 7×50mm
Guiding cameras: QcamPro4000R
Software: Adobe Photoshop 6 CS Extended, Guidemaster,  AstroArts StellaImage7
Resolution: 2048×1363
Dates: March 15, 2008
Frames:
1×60″ ISO800
7×900″ ISO800
Integration: 1.8 hours
Avg. Moon age: 7.96 days
Avg. Moon phase: 56.14%
RA center: 246.254 degrees
DEC center: -26.096 degrees
Pixel scale: 5.605 arcsec/pixel
Orientation: -148.067 degrees
Field radius: 1.916 degrees
Locations: Mt.Gomadanzan site B, Aridagawa town, Wakayama Pref., Japan

 

The additional image is here to show the Antares position in the night sky, among the other objects, to avoid confusion.

6мар (2)

Author: Fuuma-mfuk

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Rho Ophiuchi

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The Rho Ophiuchi cloud complex is a large star-forming region in the constellation Scorpius. The bright red supergiant star, Antares, is a prominent feature in the area, and reflects its light off the nearby clouds of gas.

Imaging telescopes or lenses: Canon EF 70-200mm f2.8 L2 at 135mm, f/3.2
Mounts: CELESTRON CG5-GT
Software: PixInsight, BinaryRivers BackyardEOS, Calibration, reduction, and integration with PixInsight
Post-processing with PixInsight
Imaging cameras: Canon 60Da
Frames:
17x 5min ISO800
Calibrated with darks, flats, bias

Author: Cory Schmitz
AstroPhotography of the day by SPONLI
19 June 2014

A Scorpius Sky Spectacular 

scorpio_guisard_constellation_960
Image Credit & Copyright: Stéphane Guisard, TWAN

If Scorpius looked this good to the unaided eye, humans might remember it better. Scorpius more typically appears as a few bright stars in a well-known but rarely pointed out zodiacal constellation. To get a spectacular image like this, though, one needs a good camera, color filters, and a digital image processor. To bring out detail, the above image not only involved long duration exposures taken in several colors, but one exposure in a very specific red color emitted by hydrogen. The resulting image shows many breathtaking features. Vertically across the image left is part of the plane of our Milky Way Galaxy. Visible there are vast clouds of bright stars and long filaments of dark dust. Jutting out diagonally from the Milky Way in the image center are dark dust bands known as the Dark River. This river connects to several bright stars on the right that are part of Scorpius’ head and claws, and include the bright star Antares. Above and right of Antares is an even brighter planet Jupiter. Numerous red emission nebulas and blue reflection nebulas are visible throughout the image. Scorpius appears prominently in southern skies after sunset during the middle of the year.

NASA APOD 04-May-14 scorpio_guisard_1328

Clouds and Crosses over Haleakala

HMWpano_pacholka1200
Image Credit & Copyright: Wally Pacholka (TWAN)

Aloha and welcome to a breathtaking skyscape. The dreamlike panoramic view from March 27 looks out over the 10,000 foot summit of Haleakala on Maui, Hawai’i. A cloud layer seeps over the volcanic caldera’s edge with the Milky Way and starry night sky above. Head of the Northern Cross asterism, supergiant star Deneb lurks within the Milky Way’s dust clouds and nebulae at the left. From there you can follow the arc of the Milky Way all the way to the stars of the more compact Southern Cross, just above the horizon at the far right. A yellowish Mars is right of center, near the top of the frame, with rival red giant Antares below it, closer to the Milky Way’s central bulge. Need some help identifying the stars? Just slide your cursor over the picture, or download this labeled panorama.

HMWpano_pacholka1200lab

NASA APOD 12-Apr-2014

The Antares and Rho Ophiuchi Region

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The Rho Ophiuchi cloud complex is a dark nebula of gas and dust that is located 1° south of the star ρ Ophiuchi of the constellation Ophiuchus. At an estimated distance of 131 ± 3 parsecs, this cloud is one of the closest star-forming regions to the Solar System.

The bright blue reflection nebula at the top, IC 4604, is associated with the triple star, Rho Ophiuchi.  Antares (Alpha Scorpii) is surrounded by a yellow area of nebulosity, IC 4606. Antares is 60,000 times brighter than our sun, and is so large that its disc can be easily measured – if it were in our solar system it would almost reach to Jupiter.

Nikon d7000
Nikkor 180mm F/2.8 @ f/4.0
85x30s at iso 2000
45x120s at iso 1250
10x240s at iso 1250
Dates: March 14, 2013

Autor: Jan Curtis

AstroPhotography of the day by SPONLI

31 January 2014

We select the best works of amateur astrophotographers with details of equipment, shooting processing etc.