Daily Archives: February 1, 2014

NGC 6188 and NGC 6164

Image Credit & Copyright: Harel Boren and Tal Faibish
Explanation: Fantastic shapes lurk in clouds of glowing gas in NGC 6188, about 4,000 light-years away. The emission nebula is found near the edge of a large molecular cloud unseen at visible wavelengths, in the southernconstellation Ara. Massive, young stars of the embedded Ara OB1 association were formed in that region only a few million years ago, sculpting the dark shapes and powering the nebular glow with stellar winds and intense ultraviolet radiation. The recent star formation itself was likely triggered by winds and supernova explosions, from previous generations of massive stars, that swept up and compressed the molecular gas. Joining NGC 6188 on this cosmic canvas is rare emission nebula NGC 6164, also created by one of the region’s massive O-type stars. Similar in appearance to many planetary nebulae, NGC 6164’s striking, symmetric gaseous shroud and faint halo surround its bright central star near the bottom edge. The impressively wide field of view spans over 3 degrees (six full Moons), corresponding to over 200 light years at the estimated distance of NGC 6188. Narrowband image data has been included in the natural looking color composite, adding to deep red emission from hydrogen and sulfur atoms and the blue-green light of oxygen atoms.

NASA APOD 01-Feb-2014

The Orion Molecular Cloud Complex

The Orion Molecular Cloud Complex (also often referred to as simply the Orion Complex) refers to a large group of bright nebulae, dark clouds, and young stars located in the constellation of Orion. The cloud itself is between 1,500 and 1,600 light-years away and is hundreds of light-years across. Several parts of the nebula can be observed through binoculars and small telescopes, with some parts (such as the Orion Nebula) being visible to the naked eye.

Nebulae within the complex:
the Orion Nebula
the Horsehead Nebula
Barnard’s Loop
Flame Nebula

Mount: NEQ6 Pro,
Camera: Canon 500Da
Lens: Canon 100mm USM f/4,
Frames: 16x5min, 20x15sec.
Soft: DSS, Iris, Photoshop, Lightroom, Pixinsight

Autor: Pavel Ivanovich

AstroPhotography of the day by SPONLI

01 February 2014

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

The Sun Online and solar activity. January 31, 2014

Solar activity has been at active levels over the last 24 hours. 6 C- and 1 M-class flares were recorded, all originating from NOAA 1967. The strongest was an M6-flare peaking at 16:11UT. The sunspot region still has a few magnetic delta structures. The x-ray background has been all day above the
Active conditions are expected to continue, with a slight chance on an X-class flare.

A partial halo CME was observed in LASCO/C2 starting at 08:12UT. It was most probably associated to the M2-class event that took place in NOAA 1967 (maximum at 06:39UT). It has a slow speed of about 350 km/s. A full halo CME was observed in LASCO/C2 starting 16:12UT. It was associated to the M6-flare, and had an initial plane-of-sky speed of 1735 km/s (latest CACTUS result). The bulk of the CME was directed away (to the southeast) from Earth. It is very likely this CME will overtake the partial
halo CME of the M2-event.  Solar wind parameters are currently at average levels, with a speed near
350 km/s and Bz fluctuating between -3 and +3 nT. Geomagnetic conditions were quiet.

For the next 24 hours, solar wind may continue to be modulated by the effects of small coronal holes that have passed the central meridian on 27 and 29 January. Quiet geomagnetic conditions are expected for that period. Late on 1 February, Earth may receive a glancing blow from the 29 January CME, but little geomagnetic disturbances are expected. This may change upon the arrival of the CME from the  M6-event, which is currently foreseen for the morning of 2 February. This may result in active geomagnetic conditions, with locally a minor storm possible.

Equipment: Coronado 90 +  Imaging Source DMK  + LX75
Processing: Photoshop, Avistack 500 frames
Date: 01/31/14
Time UT: 16:00
Exposure 1/500 sec.

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