13 February 2020

M 45 Pleiades -LRGB-


This article is about the star cluster.For other uses of Pleiades or Pléiades, see Pleiades (disambiguation).
 The Pleiades (/ˈpl.ədz, ˈplə-/), also known as the Seven Sisters and Messier 45, are an open star cluster containing middle-aged, hot B-type stars located in the constellation of Taurus. It is among the star clusters nearest Earth and is the cluster most obvious to the naked eye in the night sky.
The cluster is dominated by hot blue and luminous stars that have formed within the last 100 million years. Reflection nebulae around the brightest stars were once thought to be left over material from the formation of the cluster, but are now considered likely to be an unrelated dust cloud in the interstellar medium through which the stars are currently passing.
Computer simulations have shown that the Pleiades were probably formed from a compact configuration that resembled the Orion Nebula. Astronomers estimate that the cluster will survive for about another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.

Telescope : TS 60 ED
Mount : Skywatcher AZ-EQ5 GT
Camera : Atik 460 Exm
Guiding : Off-axis guider with Meade dsi2
Filters : L : 30x240sec bin 1x & RGB : 8x240sec all bin 1x
Programs I have used :Maxim DL, PixInsight, Photoshop CS6
Location: Grammatiko, Attiki

05 February 2020

Flaming Star Nebula (IC 405) in HaRGB


IC 405 (also known as the Flaming Star Nebula, SH 2-229, or Caldwell 31) is an emission and reflection nebula in the constellation Auriga, surrounding the bluish star AE Aurigae. It shines at magnitude +6.0. Its celestial coordinates are RA  05h 16.2m dec +34° 28′. It surrounds the irregular variable star AE Aurigae and is located near the emission nebula IC 410, the open clusters M38 and M36, and the K-class star Iota Aurigae. The nebula measures approximately 37.0' x 19.0', and lies about 1,500 light-years away from Earth. It is believed that the proper motion of the central star can be traced back to the Orion's Belt area. The nebula is about 5 light-years across.
Telescope : TS 65Q apo
Mount : Skywatcher AZ-EQ5 GT
Camera : Atik 460 Exm
Guiding : Off-axis guider with QHY 5IIL
Filters : Astrodon Ha 5nm 12 x 900sec bin1x
RGB 12 x 300sec all bin1x
Programs I have used : Sequence Generator Pro,Maxim DL, PixInsight, Photoshop CS6
Total exposure : 360 minutes or 6 hours
Location: Grammatiko, Attiki

15 January 2020

Travel to Budapest. The Paris of East.


Budapest (/ˈbdəpɛst/, Hungarian pronunciation: [ˈbudɒpɛʃt]) is the capital and the most populous city of Hungary, and the tenth-largest city in the European Union by population within city limits. The city has an estimated population of 1,752,286 over a land area of about 525 square kilometres (203 square miles). Budapest is both a city and county, and forms the centre of the Budapest metropolitan area, which has an area of 7,626 square kilometres (2,944 square miles) and a population of 3,303,786, comprising 33% of the population of Hungary.
The history of Budapest began when an early Celtic settlement transformed into the Roman town of Aquincum, the capital of Lower Pannonia. The Hungarians arrived in the territory in the late 9th century, but the area was pillaged by the Mongols in 1241–42.Re-established Buda became one of the centres of Renaissance humanist culture by the 15th century. The Battle of Mohács, in 1526, was followed by nearly 150 years of Ottoman rule. After the reconquest of Buda in 1686, the region entered a new age of prosperity, with Pest-Buda becoming a global city after the unification of Buda, Óbuda, and Pest on 17 November 1873, with the name 'Budapest' given to the new capital. Budapest also became the co-capital of the Austro-Hungarian Empire, a great power that dissolved in 1918, following World War I. The city was the focal point of the Hungarian Revolution of 1848, the Battle of Budapest in 1945, and the Hungarian Revolution of 1956.

from Wikipedia