Hemisphere:  Northern  ·  Constellation: Orion (Ori)  ·  Contains:  PK197-03.1
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Abell 14, 



    
        

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Abell 14

Imaging telescopes or lenses: Stellarvue SVT 130T

Imaging cameras: SBIG STT 8300M

Mounts: Astro-Physics Mach1AP GTO CP4

Guiding telescopes or lenses: Stellarvue SVT 130T

Guiding cameras: SBIG STT 8300M

Software: Software Bisque TheSky X Professional  ·  photoshop  ·  Starnet ++  ·  CCDWare FocusMax V.4  ·  PixInsight  ·  Straton Destar 2.0  ·  Topaz Denoise AI  ·  3D LUT Creator  ·  Maxim DL  ·  EQMOD  ·  DC-3 Dreams ACP Observatory Control Software  ·  Astro-Physics Command Center (APCC) Software  ·  Annie's Astro Actions Version 7.0

Filters: Astrodon Red Tru-Balance E-Series Generation 2  ·  Astrodon H-alpha 5nm  ·  Astrodon Blue Tru-Balance E-Series Gen 2  ·  Astrodon Green Tru-Balance E-Series Gen 2

Accessory: Moonlite Nitecrawler 3.5  ·  Tolga Astro Alnitak Flat-Man Electroluminescent Flat Fielding Device


Dates:Feb. 6, 2021

Frames:
Astrodon Blue Tru-Balance E-Series Gen 2: 8x240"
Astrodon Green Tru-Balance E-Series Gen 2: 8x240"
Astrodon H-alpha 5nm: 3x1800"
Astrodon Red Tru-Balance E-Series Generation 2: 8x240"

Integration: 3.1 hours

Avg. Moon age: 24.03 days

Avg. Moon phase: 30.55%


Astrometry.net job: 4206181

RA center: 6h 11' 8"

DEC center: +11° 46' 44"

Pixel scale: 1.220 arcsec/pixel

Orientation: 178.574 degrees

Field radius: 0.120 degrees


Resolution: 500x500

Locations: Stanford Faculty Observatory (Bortle 6 SQM 18.6), Stanford, California, United States

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

Turns out this Abell has been studied... just need a little better equipment to do it justice:

Deciphering the bipolar planetary nebula Abell 14 with 3D ionization and morphological studies
S. Akras, N. Clyne, P. Boumis, H. Monteiro, D. R. Gonçalves, M. P. Redman, S. Williams

Abell 14 is a poorly studied object despite being considered a born again planetary nebula. We performed a detailed study of its 3D morphology and ionization structure using the SHAPE and MOCASSIN codes. We found that Abell 14 is a highly evolved, bipolar nebula with a kinematical age of ∼19,400 yr for a distance of 4 kpc. The high He abundance, and N/O ratio indicate a progenitor of 5 M⊙ that has experienced the third dredge-up and hot bottom burning phases. The stellar parameters of the central source reveal a star at a highly evolved stage near to the white dwarf cooling track, being inconsistent with the born again scenario. The nebula shows unexpectedly strong [N I] λ5200 and [O I] λ6300 emission lines indicating possible shock interactions. Abell 14 appears to be a member of a small group of highly evolved, extreme Type-I PNe. The members of this group lie at the lower-left corner of the PNe regime on the [N II]/Hα vs. [S II]/Hα diagnostic diagram, where shock--excited regions/objects are also placed. The low luminosity of their central stars, in conjunction with the large physical size of the nebulae, result in a very low photo-ionization rate, which can make any contribution of shock interaction easily perceptible, even for small velocities.

https://arxiv.org/abs/1601.02170

GENERAL NOTE ON ABELL (and other) PLANETARY NEBULA>>>>>>>>>>>>>

From Wikipedia:

The Abell Catalog of Planetary Nebulae was created in 1966 by George O. Abell and was composed of 86 entries thought to be planetary nebulae that were collected from discoveries, about half by Albert George Wilson and the rest by Abell, Robert George Harrington, and Rudolph Minkowski. All were discovered before August 1955 as part of the National Geographic Society – Palomar Observatory Sky Survey on photographic plates created with the 48-inch (1.2 m) Samuel Oschin telescope at Mount Palomar. Four were later rejected as not being planetaries: Abell 11 (reflection nebula), Abell 32 (red plate flaw), Abell 76 (ring galaxy PGC 85185), and Abell 85 (supernova remnant CTB 1 and noted as possibly such in Abell's 1966 paper). Another three were also not included in the Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (SEC): Abell 9, Abell 17 (red plate flaw), and Abell 64. Planetaries on the list are best viewed with a large aperture telescope (e.g. 18-inch (0.46 m)) and an OIII filter.

It turns out to my surprise most of these are visible with my Stellarvue 130mm (5-inch) SVX.

Bottom line there are 79 imagable Abell Nebula of which I have imaged 41 (half-way point Feb 6 2012).

This is my collection:

Planetary Nebula (Abell)

These are sorted by number and behind the Abell's are other miscellaneous PNs that I have imaged... I have a list of the 100 brightest.

These are some useful Abell relevant sites:

Color and Filter Information

Images by Season and More Filter information in German

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