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Contains:  Extremely wide field
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Vulupecula Milky Way, 



    
        

            Gabriel R. Santos...
Vulupecula Milky Way
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Vulupecula Milky Way

Technical card


Dates:Aug. 3, 2019

Frames: 18x180" ISO800

Integration: 0.9 hours

Darks: ~50

Flats: ~20

Bias: ~50

Avg. Moon age: 2.75 days

Avg. Moon phase: 8.34%

Bortle Dark-Sky Scale: 3.00

Mean SQM: 21.70

Mean FWHM: 4.20

Temperature: 17.00


Basic astrometry details

Astrometry.net job: 3010203

RA center: 19h 54' 20"

DEC center: +25° 24' 28"

Pixel scale: 10.365 arcsec/pixel

Orientation: 178.068 degrees

Field radius: 5.877 degrees


Resolution: 3397x2265

Data source: Traveller

Description

In the northern constellation Vulupecula, the fox, lies a field rich in stars, gas and dust, right in the plane of the Milky Way galaxy. This 20 full-moons across wide field shows a striking contrast of brightness and colour in the area. Within this small constellation lies several deep sky objects, including the famous Dumbbell Nebula – a planetary nebula, the result of a dying star. However, star formation is also intense in the area, and several fainter and smaller nebulae fill the frame.

Amongst these nebulae, I note the emission regions: Sharpless 86, 87, 88, 89, 90, 92, 93 and NGC 6820. The two dark nebulae in the bottom left corner are catalogued as LDN 799, 803, 804, 806, 807 [the northern bottom cloud] and LDN 790, 792 and 793 [the southernmost nebula]. [1]
_____________________________________________

This field was imaged under the dark skies of the 12º Encontro Brasileiro de Astrofotografia (12th Brazilian Astrophotography Meeting): I travelled some 1200km to share imaging nights with wonderful people under great skies, making those some of the most memorable days of the year! It is very rarely photographed, and I have not yet seen it presented as this one. Indeed, I really liked how the framing turned out to be: I tried to find the best way to frame all the different nebulae. Despite the short ~1h integration, the light-gathering power of the fast f/2.0 and dark skies were able to pick out some fainter nuances of the nebulosity and the dust.

Constructive criticism, comments and suggestions are more than welcome in the comments section. Thank you for taking your time to look at this image!

Date: 03/08/2019
Location: 12th EBA, GO, Brazil. Dark-Rural Skies (Bortle 2-3, calculated SQM ~21.7)
Camera: Canon EOS T5/1200D (modded) at ISO 800
Optics: Samyang 135mm f/2 operated at f/2.0
Mount: Sky-Watcher HEQ5, tracking, guided
Exposure Detail: 18x180s – Total integration 54 min

************ [Português]

Na constelação setentrional Vulupecula, a raposa, encontra-se num campo rico em estrelas, gás e poeira, bem no plano da Via Láctea. Este campo amplo, no qual cabem 20 luas cheias, mostra um contraste impressionante de brilho e cor na área. Dentro desta pequena constelação existem vários objetos do céu profundo, incluindo a famosa Nebulosa do Haltere - uma nebulosa planetária, resultado da morte de uma estrela. No entanto, estrelas também estão se formando na área, e várias nebulosas mais fracas e menores preenchem o quadro.

Entre essas nebulosas, notam-se as regiões de emissão: Sharpless 86, 87, 88, 89, 90, 92, 93 e NGC 6820. As duas nebulosas escuras no canto inferior esquerdo estão catalogadas como LDN 799, 803, 804, 806, 807 [mais em baixo] e LDN 790, 792 e 793 [a nebulosa mais ao sul]. [1]
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Este campo foi fotografado sob os céus do 12º Encontro Brasileiro de Astrofotografia viajei cerca de 1200 km para compartilhar noites de imagens com pessoas maravilhosas sob ótimos céus, tornando-os alguns dos dias mais memoráveis do ano! O campo é muito raramente fotografado, e ainda não o vi apresentado como nesta imagem. Na verdade, gostei muito de como o enquadramento saiu: tentei encontrar a melhor maneira de enquadrar todas as nebulosas diferentes. Apesar da curta integração de uma hora, o poder de captação de luz em f / 2.0 e o céu escuro foram capazes de captar algumas nuances mais fracas da nebulosidade e da poeira.

[1] Lynds, B.T. 1962, `Catalogue of Dark Nebulae', ApJS, 7, 1. [LDN]. Marcout, J., and Ochsenbein, F. 1996, CDS revised version of LDN. Access via SIMBAD Database.

Comments

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grsotnas
Gabriel R. Santos...
License: None (All rights reserved)
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Vulupecula Milky Way, 



    
        

            Gabriel R. Santos...