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Sunday, October 25, 2020

Exhibition, Oulu, Finland 28.10 - 15.11. 2020

 EXHIBITION



KUTSU SINULLE JA YSTÄVILLESI
            
     

J-P METSÄVAINIO
PER ASPERA AD ASTRA
28.10.-15.11.2020
 
J-P Metsävainio kuvaa yöllisen taivaan kauneutta tieteen työmenetelmiä ja välineitä hyödyntäen. Per aspera ad astra -näyttely esittelee hänen uusimpia astronomisia luontokuviaan. Vaikka itse kuvausprosessi on teknisesti raskas, Metsävainion valokuvat soivat sfäärien musiikkia luonnollisesti ja tekniikan kahleista vapautuneena. Katsojalle avautuu yhä uusia näkymiä ympäröivään todellisuuteen taiteilijan raottaessa salaisuuksien verhoa ympärillämme. 

Järjestämme näyttelyn aikana taiteilijatapaamisia ryhmille ja työporukoille. Jos olet kiinnostunut tapaamaan taiteilija näyttelyn aikana, niin soita galleristi Hanna Manniselle 040 1780 980 järjestääksesi taiteilijatapaamisen.

Juhlimme näyttelyn avajaisia tiistaina 27.10.2020 klo 18-20!  Taiteilija on paikalla avajaisissa. Tervetuloa!

 
Lisätietoja näyttelystä ja teoskuvia: https://mabd.fi/nayttely/j-p-metsavainio/

Friday, October 9, 2020

New photo, Sharpless 126 in lacerta

 


I haven't seen many pictures about this large and diffused nebula before. 
This is a very good target for my photon hungry wider field setup, https://astroanarchy.blogspot.com/2020/01/the-frankenstein-monster-my-current.html

'

Sharpless 126, Sh2-126
Click for a large image

A bicolor image from the light from ionized elements hydrogen (H-alpha) and oxygen (O-III)


INFO

Sharpless 126 (Sh2-126) is a large emission nebula in Lacerta. The source of its ionization is the ultraviolet radiation from the star 10 Lacertae.

This region with its weak nebulous filaments is part of a huge star forming region, 1200 light years away from earth.

H-alpha alone
Click for a large image



Technical details

Processing workflow

Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.

Imaging optics
Tokina 300 mm AT-x f2.8 camera lens

Mount
10-micron 1000

Cameras and filters
Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel
Guider camera, Lodestar x 2 and an old spotting scope of Meade LX200


Astrodon filters,
5nm H-alpha 3nm S-II and 3nm O-III

Total exposure time

H-alpha, 9 x 1200 s, binned 1x1 = 3 h
O-III, 1 x 1200 s, binned 1x1= 20 min.

Wednesday, October 7, 2020

The Tulip nebula area in cygnus, Sh2-101, in natural colors

 


In my previous blog post this image can be seen in mapped colors, https://astroanarchy.blogspot.com/2020/10/the-tulip-nebula-in-cygnus-sh2-101.html

Photo is taken with my temporary imaging system, at the moment I'm out of the actual telescope : (
Mor info about this tool set can be seen here, https://astroanarchy.blogspot.com/2020/01/the-frankenstein-monster-my-current.html

The tulip Nebula area 
Please, click for a large image, it's worth it!¨

Image is in Natural color palette from the emission of ionized elements, R=Hydrogen + Sulphur, G=Oxygen and B=Oxygen + 10% Hydrogen to compensate the missing H-beta emission


An experimental starless view
click for a large image


Info

I have shot the actual Tulip Nebula with a large 11" telescope, images and info about the Tulip nebula can be seen HERE. An other interesting detail, a blue crescent like shape at center left. It's a Wolf Rayet shell around a star WR 134. I have shot this also with a large telescope, more info and images can be found HERE  

A closeup photo of the Wolf Rayet Shell around the star WR 134

This feature can be found from the new wide field photo at center left.



Nebula in light of an ionized hydrogen alone (H-alpha)
click for a large image

Nine twenty minute 5 nm H-alpha exposures are calibrated with bias corrected flats and stacked to this cumulative three hour exposure. 


Technical details

Processing workflow

Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.

Imaging optics
Tokina AT-x f2.8 camera lens

Mount
10-micron 1000

Cameras and filters
Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel
Guider camera, Lodestar x 2 and an old spotting scope of Meade LX200


Astrodon filters,
5nm H-alpha 3nm S-II and 3nm O-III

Total exposure time

H-alpha, 9 x 1200 s, binned 1x1 = 3 h
O-III, from my older photo of the area
S-II, from my older photo of the area
Older photo can be seen here, https://astroanarchy.blogspot.com/2011/12/cygnus-mosaic-18-panels-and-22-x-14.html

Tuesday, October 6, 2020

The Tulip nebula in cygnus, Sh2-101

 


This is my second light photo for the cloudy Autumn season 2020. The area next to well known Tulip Nebula is very beautiful and less imaged  due to its large size and relatively low surface brightness. My current toolset is very suitable for this kind of objects, since its kind of heavily undersampled and that's good when I need to capture very dim and large objects.


The tulip Nebula area 
Please, click for a large image, it's worth it!

Image is in mapped colours, from the emission of ionized elements, R=Sulphur, G=Hydrogen and B=Oxygen. 


A starless view
click for a large image

An experimental starless version shows the actual nebula complex better.

Info

I have shot the actual Tulip Nebula with a large 11" telescope, images and info about the Tulip nebula can be seen HERE. An other interesting detail, a blue crescent like shape at center left. It's a Wolf Rayet shell around a star WR 134. I have shot this also with a large telescope, more info and images can be found HERE  

A closeup photo of the Wolf Rayet Shell around the star WR 134

This feature can be found from the new wide field photo at center left.

Nebula in light of an ionized hydrogen alone (H-alpha)
click for a large image

Nine twenty minute 5 nm H-alpha exposures are calibrated with bias corrected flats and stacked to this cumulative three hour exposure. 

Technical details

Processing workflow

Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.

Imaging optics
Tokina AT-x f2.8 camera lens

Mount
10-micron 1000

Cameras and filters
Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel
Guider camera, Lodestar x 2 and an old spotting scope of Meade LX200


Astrodon filters,
5nm H-alpha 3nm S-II and 3nm O-III

Total exposure time

H-alpha, 9 x 1200 s, binned 1x1 = 3 h
O-III, from my older photo of the area
S-II, from my older photo of the area
Older photo can be seen here, https://astroanarchy.blogspot.com/2011/12/cygnus-mosaic-18-panels-and-22-x-14.html