Daily Archives: December 10, 2013

The Sun Online and solar activity. December 10, 2013

The situation concerning flares didn’t change much: the Sun is still in a C-flaring mood, the probability for M-flares is around 40%. A series of three small sunspots popped up: Catania 73, 74 and 77. They are
small but indicate that solar activity is still on the run. The solar wind speed has decreased to 400 km/s. The glancing blow linked with the plasma eruption on December 7 didn’t arrive. We don’t exclude a later arrival.

Equipment: Coronado 90 + SBIG 8300s + LX75
Processing: Photoshop
Date: 12/10/13
Time UT: 04:30
Exposure 0.8 sec.

With SPONLI Space is getting closer!


Seyfert’s Sextet


Image Credit: Hubble Legacy Archive, NASA, ESA; Processing: Judy Schmidt

What will survive this battle of the galaxies? Known as Seyfert’s Sextet, this intriguing group of galaxies lies in the head portion of the split constellation of the Snake (Serpens). The sextet actually contains only four interacting galaxies, though. Near the center of this Hubble Space Telescope picture, the small face-on spiral galaxy lies in the distant background and appears only by chance aligned with the main group. Also, the prominent condensation on the upper left is likely not a separate galaxy at all, but a tidal tail of stars flung out by the galaxies’ gravitational interactions. About 190 million light-years away, the interacting galaxies are tightly packed into a region around 100,000 light-years across, comparable to the size of our own Milky Way galaxy, making this one of the densest known galaxy groups. Bound by gravity, the close-knit group may coalesce into a single large galaxy over the next few billion years.


IC 2944: Running Chicken Nebula

IC 2944
, also known as the Running Chicken Nebula or the Lambda Cen Nebula, is an open cluster with an associated emission nebula found in the constellation Centaurus, near the star Lambda Centauri. It features Bok globules, which are frequently a site of active star formation. However, no evidence for star formation has been found in any of the globules in IC 2944.

The Hubble Space Telescope image on the right is a close up of a set of Bok globules discovered in IC 2944 by South African astronomerA. David Thackeray in 1950. These globules are now known as Thackeray’s Globules.

Imaging telescopes or lenses: Canon EF 135mm f/2.0 L
Imaging cameras: Atik 314L+
Mounts: Celestron CG-5 Advanced GoTo
Filters: Orion HA OIII SII
Resolution: 1317×962
Dates: July 6, 2013
Frames: 30×240″

Autor: Rodrigo Andolfato

AstroPhotography of the day by SPONLI
10 December 2013

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