Petergoodhew

On 16/12/2019 at 18:59, Kinch said:

I have not seen this one before......71.5 hours on a dual rig equates to over 140 hours work on a normal set-up. 🤔...way beyond where most of us want to go....therefore quite a unique result I would say. Well done 👍

 

 

Thanks Brendan. The 71.5 hours was almost all done using just one scope due to some problems with the other scope that I've only just resolved. As you know the weather has been dreadful in Extramadura, like elsewhere in Spain - so it took me two months to capture this stupidly faint target!

Hartl-Dengel-Weinberger 3 (HDW 3, PK149-09.1, PNG149.4-09.2) is an extremely faint ancient planetary nebula in the constellation Perseus. It is so faint that it is very rarely imaged.

Astrodon Blue: 17x300"
Astrodon Green: 20x300"
Astrodon Lum: 39x600"
Astrodon Red: 20x300"
Astrodon OIII: 51x1800s bin 2x2
Astrodon Ha: 76x1800s bin 2x2

Total Integration: 71.5 hours

Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152 (6" aperture 1200mm focal length)
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS

2 hours ago, Rodd said:

Where exactly is it?  It seems rather large. I would like to try with 1,000mm.  A bit less than your 1,200 but it is very large in your FOV. 

Rodd it's in Cassiopeia: RA 03 03 47.01  DEC +64 54 35.7

It would fit really well at 1000mm.

16 minutes ago, Rodd said:

Is it a crop?

Just a slight edge crop Rodd to tidy things up.

HFG1 (PK 136+05) is a very old large, low-surface-brightness planetary nebula in Cassiopeia that was discovered by Heckathorn, Fesen, and Gull in 1982. It surrounds, and was produced by, a binary star system (V664 Cas) that is moving rapidly through our Galaxy. The star is moving towards the lower left of the image. As HFG1 plows through the interstellar medium, a bluish bowshock is produced; and a red trail of gas is left behind in its wake.

Astrodon Blue: 10x300"
Astrodon Green: 10x300"
Astrodon Lum: 11x600"
Astrodon Red: 10x300"
Astrodon OIII: 35x1800s bin 2x2
Astrodon Ha: 33x1800s bin 2x2

Total Integration: 38 hours

Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152 (6" aperture 1200mm focal length)
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS

Ref: Monthly Notices of the Royal Astronomical Society 396(2):1186 - 1188 · June 2009

31 minutes ago, almcl said:

Out of curiosity, where/how did you first find out about it?  

Thanks.  There's a chap called Sakib Rasool (starsurfin.co.uk) who sends me lots of requests for me to image the more obscure (i.e. challenging!) planetary nebulae.

Peter

Kronberger 61 (Kn 61). also known as the Soccer Ball nebula, is a recently-discovered planetary nebula in the constellation of Cygnus. It was discovered in January 2011 by Mattias Kronberger, who is a member of the amateur group Deep Sky Hunters. It is very small (diameter of 104 arcsecs).
It is barely visible on the second Palomar Optical Sky Survey (POSS-II) blue plate scan, suggesting a surface brightness well below magnitude 25 per square arcsecond - and at an estimated distance of 13,000 light years (1).
It is a highly filamentary bubble with a high expansion velocity of 67.6 km/second. A crude kinematic age for the bubble yields 16,000 years (2).

Astrodon Blue: 10x300"
Astrodon Green: 10x300"
Astrodon Lum: 19x600"
Astrodon Red: 10x300"
Astrodon OIII: 34x1800s bin 2x2

Total Integration: 23 hours

Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152 (6" aperture 1200mm focal length)
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS

(1) <a href="http://www.gemini.edu/node/11656" rel="noreferrer nofollow">www.gemini.edu/node/11656</a>
(2) <a href="https://arxiv.org/abs/1406.4408" rel="noreferrer nofollow">arxiv.org/abs/1406.4408</a>

DeHt5 (Dengel-Hartl 5) is a large faint ancient planetary nebula in the constellation Cepheus. It is estimated to be one of the closest planetary nebulae at a distance of 1300-1600 light years.
The faint red filaments at the top right hand corner of the image are the supernova remnant called SNR 110.3+11.3.

Astrodon Blue: 19x300"
Astrodon Green: 19x300"
Astrodon Lum: 20x600"
Astrodon Red: 20x300"
Astrodon Ha: 25x1800s bin 2x2
Astrodon OIII: 26x1800s bin 2x2

Total Integration: 34 hours

Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS

MWP1 (Motch-Werner-Pakull 1) also known as The Methuselah Nebula is a rarely-imaged faint bi-polar planetary nebula in the constellation of Cygnus. It is one of the largest known planetary nebulae - spanning some 15 light years. It lies around 4,500 light years from Earth.

Astrodon Blue: 16x300"
Astrodon Green: 16x300"
Astrodon Lum: 18x600"
Astrodon Red: 16x300"
Astrodon Ha: 35x1800s bin 2x2
Astrodon OIII: 37x1800s bin 2x2

Total Integration: 43 hours

Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS

Another great image Olly. What’s the thinking behind 9 hours of colour and 7 of luminance? I always thought the most of the capture should be luminance to tease out most detail?

Peter

1 hour ago, geordie85 said:

This is a great image. 

I've thought about this target myself, but the results won't compare to this from my skies. 

Thanks Geordie.  This is a tough one with dark skies.  Getting those shells in poor skies will be really tricky.

An unusual group of galaxies i(ARP 227) in the constellation of Pisces. Outer shells may have been created from gravitational interaction between galaxies. The largest galaxy is NGC 474. It is 100 million light years away, and about 250,000 light years across. The outer shells are extremely faint and have necessitated 1800s luminance exposures.

Astrodon Blue: 63x300" bin 2x2
Astrodon Green: 64x300" bin 2x2
Astrodon Lum: 54x1800" bin 1x1
Astrodon Red: 54x300" bin 2x2

Total Integration: 42.1 hours

Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS

Sharpless 200, also known as HDW 2 (Hartl-Dengl-Weinberger 2) and commonly known as the Bearclaw Nebula is a very faint planetary nebula in the constellation of Cassiopeia. The Ha signal is much fainter than the OIII so I went extra deep on the Ha capture.

Astrodon Blue: 20x300" bin 1x1
Astrodon Green: 10x300" and 10x600" bin 1x1
Astrodon Lum: 37x600" bin 1x1
Astrodon Red: 20x300" bin 1x1
Astrodon Ha 5nm 62x1800" bin 1x1
Astrodon OIII 3nm 37x1800" bin 1x1

Total Integration: 61.5 hours

Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS

An excellent image of a target so often overshadowed by its big neighbour.  Well done.  That long integration has really paid off.

3 hours ago, Rodd said:

Wow--that is awesome.  the detail is amazing, and the colors are so natural.

Rodd

Thanks Rodd

9 hours ago, alan potts said:

Lovely image Peter, a difficult target I am sure and with 21 hours I guess you are getting the same sort of clear skies I have 36 on the trot now and again clear.

Alan

Yes Alan, its been a remarkable run of clear weather.

A barred-spiral galaxy in the constellation of Camelopardis. It is estimated to be 112 million light years away. 

Astrodon Blue: 14x300" bin 1x1
Astrodon Green: 30x300" bin 1x1
Astrodon Lum: 92x600" bin 1x1
Astrodon Red: 30x300" bin 1x1

Total Integration: 21.5 hours

Captured on my dual rig in Spain.

Scopes: APM TMB 152 LZOS refractors

Mount: 10Micron GM2000 HPS

Cameras: QSI6120wsg8

14 hours ago, pietervdv said:

Very nice! There is no o3 component in the planetary nebula? Only h-alfa? 

Regards, 

Pieter 

There is a tiny amount of featureless O3 - but it is so little it wasn't worth including it.

5 hours ago, Skarpen said:

Great picture👍

Thanks Ola

A planetary nebula in Cassiopeia discovered by Marcel Drechsler in May of this year. Intensely faint.

25 hours of HaLRGB

Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS

9 hours ago, JamesF said:

Now if anything genuinely looks like a "bubble", that does.

Well done on capturing it.

James

Thanks James

A very faint planetary nebula in the constellation of Cassiopeia. It was identifed by Laurent Ferrero in November 2013.

This is a total of 41 hours of integration.  HaOIIILRGB

Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS

17 hours ago, Allinthehead said:

Very nice peter. You always present us with some very interesting images.

Thanks Richard. 

On 29/08/2019 at 21:24, Kaliska said:

That sir, is beautiful.

Thanks, glad you like it!

Peter

NGC 7662 is also known as the Blue Snowball nebula, and the Snowball nebula.  It is a planetary nebula in the constellation of Andromeda. There is uncertainty about its distance, with estimates varying between 1,800 and 5,600 light years from Earth.

This is a total of 20 hours of integration.

Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS

The core was captured from London on my Celestron C11 telescope.