News

/News

M42 Red channel only

By |2018-12-12T12:08:24+00:0011 December 2018|Categories: HOYS-CAPS, M31-60, Nebula, News|

Shows Trapezium stars really well with just Red channel.
Submitted to HOYS-CAPS project.

Object ID M42 Orion Nebula
Details 2018-12-09 22:16 – 22:42 UT
Telescope 250mm f4.8 Newtonian
MPCC IDAS P1
Baader Red filter
Camera ATIK 460EX @-20C
Exposure(s) 15x90s darks
Capture APT
Processing Nebulosity, Photoshop

NGC 1514 Crystal Ball Nebula

By |2018-12-06T21:42:19+00:006 December 2018|Categories: News, NGC Winter, Planetary Nebula|

A chance find, discovered on the way to finding comet 46P. Telescope was unbalanced so guiding was poor. Very noisy image so no real details. Would like to do more with this.

Object ID NGC 1514  Crystal Ball Nebula, Taurus
Details Mag 9.43 Size 2.2′
2018-12-04
Poor transparency
Telescope 250mm f4.8 Newtonian
MPCC, IDAS P1 LPR
Camera Atik 460EX
Baader RGB filters
Exposure(s) 5x60s 2×2 each RGB
Darks
Capture APT
Guiding PHD2
Processing Nebulosity, Photoshop

NGC 1514 is a planetary nebula that was discovered by William Herschel on November 13, 1790, describing it “A most singular phaenomenon” and forcing him to rethink his ideas on the construction of the heavens. Up until this point Herschel was convinced that all nebulae consisted of masses of stars too remote to resolve, but now here was a single star “surrounded with a faintly luminous atmosphere.” He went on to conclude “Our judgement I may venture to say, will be, that the nebulosity about the star is not of a starry nature”.

It has since been conjectured that the nebula in fact envelops a tightly orbiting double star with a period of up to 10 days. Gas is presumably expanding away from the larger star of the pair.

Wikipedia

97.8% Moon – Copernicus, Kepler, Aristarchus and Sinus Iridium

By |2018-11-23T23:09:23+00:0023 November 2018|Categories: Moon, News|

Not much imaging recently because of terrible weather. This was the only chance and the seeing was incredibly bad after a rain storm. The Maria were undulating so much they looked like there really was water in them. Still got something though.

Object ID 97.8% Moon, lunation 14.25 days
Copernicus, Kepler, Aristarchus and Sinus Iridium
Details 2018-11-21 22:03 UT, seeing I/V
Drifting clouds
Telescope 250mm f5 Newtonian
Camera ZWO ASI290MC, UV/IR filter
Exposure(s) 90s SER file, 30% frames
Capture FireCapture
Processing AutoStakkert, Photoshop
Comments Off on 97.8% Moon – Copernicus, Kepler, Aristarchus and Sinus Iridium

M81 LRGB

By |2018-11-06T15:50:08+00:006 November 2018|Categories: Galaxy, M61-90, News|

Lots of gradients and stray light from somewhere coming in. Hard to process and as a result have lost the fainter outer arms.

Object ID M81 Bode’s galaxy
Mag. 6.94, Size 26.9′ x 14.1′
Ursa Major
Details 2018-11-1 21:59 – 22:47 UT
Telescope 250mm f4.8 Newtonian, MPCC
IDAS P2 LPR filter
Guided
Camera Atik 460EX, Baader LRGB  filters
Exposure(s) L 20x120s 1×1, RGB 10x60s 2×2 each
darks, flats were no good
Capture APT
Processing Nebulosity 4, Photoshop
Comments Off on M81 LRGB

M31 first test of old 10 inch Newt

By |2018-11-06T15:51:38+00:0012 October 2018|Categories: Galaxy, M31-60, News|

First test of the old 10 inch Newtonian I picked up. Focuser and dovetail were a mess, but with some work it could be good. Optically pretty sound though.

Object ID M31 Andromeda galaxy
Mag. 3.44, Size 3.1 x 1 degrees
Andromeda
Details 2018-10-11 22:26 – 23:49 UT
Telescope 250mm f4.8 Newtonian, MPCC
IDAS P2 LPR filter
Guided
Camera Atik 460EX, Baader LRGB  filters
Exposure(s) L 16x120s 1×1, RGB 10x60s 2×2 each
darks
Capture APT
Processing Nebulosity 4, Photoshop
Comments Off on M31 first test of old 10 inch Newt

NGC 281 (Pacman nebula) in RGB

By |2018-11-06T15:50:53+00:0011 October 2018|Categories: Nebula, News, NGC Autumn|

Few things wrong. Poor seeing, bloated stars, gusty wind,…

Object ID NGC 281 Pacman nebula (IC11)
Mag. 10, Size 35′
H II region emission nebula
Contains open cluster NGC 1590
Cassiopeia
Details 2018-10-10
Poor seeing and transparency
Telescope 200mm f5 Newtonian, MPCC
IDAS P2 LPR filter
Guided
Camera Atik 460EX, Baader RGB  filters
Exposure(s) 15 x 120s each colour
darks, flats
Capture APT
Processing Nebulosity 4, Photoshop
Comments Off on NGC 281 (Pacman nebula) in RGB

NGC 281 (Pacman nebula) in Ha

By |2018-10-11T15:16:22+00:008 October 2018|Categories: Nebula, News, NGC Autumn|

Best night for ages.

Object ID NGC 281 Pacman nebula (IC11)
Mag. 10, Size 35′
H II region emission nebula
Contains open cluster NGC 1590
Cassiopeia
Details 2018-10-06 22:03-23:41 UT
No moonlight and good transparency
Telescope 200mm f5 Newtonian, MPCC
IDAS P2 LPR filter
Guided
Camera Atik 460EX, Baader 7nm Ha filter
Exposure(s) 19 x 300s
darks, flats
Capture APT
Processing Nebulosity 4, Photoshop

NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way’s Perseus Spiral Arm. This 20×30 arcmin sized nebulosity is also associated with open cluster IC 1590, several Bok globules and the multiple star, B 1. It collectively forms Sh2-184,[3] spanning over a larger area of 40 arcmin.[4] A recent distance from radio parallaxes of water masers at 22 GHz made during 2014 is estimated it lies 2.82±0.20 kpc. (9200 ly.) from us.[5] Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character.

E. E. Barnard discovered this nebula in August 1883, who described it as “a large faint nebula, very diffuse.” Multiple star ‘B 1’ or β 1 was later discovered by S. W. Burnham, whose bright component is identified as the highly luminous O6 spectral class star, HD 5005 or HIP 4121. It consists of an 8th-magnitude primary with four companions at distances between 1.4 and 15.7 arcsec. There has been no appreciable change in this quintuple system since the first measures were made in 1875.
Wikipedia

Comments Off on NGC 281 (Pacman nebula) in Ha