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Heart of the Rosette NGC2244

2020-02-06T17:57:40+00:006 February 2020|HOYS, Nebula, News|

Data taken for the HOYS project of NGC2244 in Hydrogen-Alpha. This was taken in strong moonlight but Ha images are much less affected. RGB was a non-starter with the Moon so strong.

Object IDNGC2244 Rosette Nebula HOYS 008
Details2020-02-04
22:48:47 – 23:36:01
Telescope250mm f4.8 Newtonian
CameraAtik 460EX @15C
Exposure(s)10x300s Baader Ha
bin 1×1, darks, flats, bias
CaptureAPT
ProcessingNebulosity, Photoshop

Pelican Nebula TR IC 5070 HOYS-CAPS data

2019-09-15T22:21:49+00:0014 September 2019|HOYS, Nebula, News, NGC Summer|

A by-product of doing HOYS-CAPS data for V1490Cyg in Tri-colour R, decided to make a stacked image out of it. 30 subs over 6 months.

At least 4 Herbig-Haro objects imaged in this and marked out in the greyscale version.

Object IDIC 5070
Pelican Nebula
DetailsCygnus
Mag. 8, 60’x50′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)30x180s R
CaptureAPT
ProcessingDSS, Nebulosity, Photoshop

“The Pelican is much studied because it has a particularly active mix of star formation and evolving gas clouds. The light from young energetic stars is slowly transforming cold gas to hot and causing an ionization front gradually to advance outward. Particularly dense filaments of cold gas are seen to still remain, and among these are found two jets emitted from the Herbig–Haro object 555. Millions of years from now this nebula might no longer be known as the Pelican, as the balance and placement of stars and gas will leave something that appears completely different.”

“Herbig–Haro (HH) objects are bright patches of nebulosity associated with newborn stars. They are formed when narrow jets of partially ionized gas ejected by said stars collide with nearby clouds of gas and dust at speeds of several hundred kilometers per second. Herbig–Haro objects are ubiquitous in star-forming regions, and several are often seen around a single star, aligned with its rotational axis. Most of them lie within about one parsec (3.26 light-years) of the source, although some have been observed several parsecs away. HH objects are transient phenomena that last around a few tens of thousands of years. They can change visibly over quite short timescales of a few years as they move rapidly away from their parent star into the gas clouds of interstellar space (the interstellar medium or ISM). Hubble Space Telescope observations have revealed the complex evolution of HH objects over the period of a few years, as parts of the nebula fade while others brighten as they collide with the clumpy material of the interstellar medium.”

Wikipedia

Pelican Nebula HaRGB IC 5070

2019-08-16T22:39:18+00:0013 August 2019|HOYS, Nebula, News, NGC Summer|

A by-product of doing HOYS-CAPS data for V1490Cyg in HaRGB, decided to make a colour image out of it even though only 3 subs for each filter.

Object IDIC 5070
Pelican Nebula
DetailsCygnus
Mag. 8, 60’x50′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)3x180s RGB, 3x300s Ha
CaptureAPT
ProcessingDSS, Nebulosity, Photoshop

2MASS J21383981+5708470 in IC1396A

2019-07-23T22:03:40+00:0028 June 2019|HOYS, News|

Been gathering HOYS-CAPS data on 2MASS J21383981+5708470 in IC1396A recently because of a possible increase in brightness. This has been stretched and processed to show details. Normal submitted data wouldn’t be.

Object ID2MASS J21383981+5708470
DetailsIn IC1396A
21 38 39.8 +57 08 47.1
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
IDAS P2 LP filter
Baader tri-colour red filter
Exposure(s)3x180s, darks, bias, flats
-16C
CaptureAPT
ProcessingNebulosity, Photoshop

NGC 2264 Christmas Tree Cluster narrowband

2019-01-30T13:16:31+00:0030 January 2019|HOYS, Nebula, News, NGC Winter, Open Cluster|

After a HOYS-CAPS session added narrowband. Rat’s head in there?
No more MPCC and stars are much sharper at the edges.

Object IDNGC 2264, Christmas Tree Cluster
Details2019-01-29
Telescope250mm f4.8 Newtonian, MPCC
CameraAtik 460EX @-20C
Baader Ha, OIII, SII filters
Exposure(s)10x300s 2×2 each
Darks
CaptureAPT
ProcessingNebulosity, Photoshop
SHO colour mapping