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Only observations that have a description and at least one image attached.

Lynds Bright nebula 696

21.3.2020 at 21.00 - Oulu (I)
Jukka-Pekka Metsavainio

I probably completed the last new picture of the season. The mosaic of the two images depicts that eleven-degree-wide strip of sky between the constellation Perseus and the Driver. The figure shows the brightest Sharpless 205 and NGC 1491 on the left and the Lynds Brightnebula 696 as a wide area on the right. Note. the south is pictured above. In my blog, the image can also be found marked on the star map. These are really dim subjects, the shutter speed has been used for 43 hours, of which 30x2 when shot in 2x2 mode. The effective shutter speed is therefore more than 120 h. (If everything had...

Images: 3 pcs • Comments: 2 pcs

NGC 1491

13.3.2020 at 21.00 - 02.00 - Oulu (I)
Jukka-Pekka Metsavainio

Rarely observed or described object in the constellation of Perseus. At nine o'clock in the evening the destination is high southwest at this time of year. Sharpless 205 and NGC 1491 appear in my image together, Sh2-205 is a broad target and the catalog code applies to the brightest peanut-shaped part. In the upper right corner is NGC 1491 and it is about 11,000 light-years away from us. The width of the image is about six degrees from the sky, which means large objects. Both are very dim objects and a good challenge for celestial photographers like this in the spring as the Milky Way gase...

Images: 4 pcs

IC 405

3.3.2020 at 19.45 - 00.00 - Oulu (V)
Jukka-Pekka Metsavainio

I collected five hours of data from the lively area of the Driver’s Constellation. The brightest objects in the image are the nebulae IC 405 and IC 410, the image area is about six degrees to its edge. The subsampled optical configuration is advantageous when it wants to expose dim emission hazards with a relatively short exposure time. You might want to look at the higher resolution image on the blog, the specifications are also there, https://astroanarchy.blogspot.com/2020/03/new-photo-deep-in-to-darkness.html I still realized that the Simeis 147 supernova remnant I photographed earlier in t...

Images: 4 pcs • Comments: 4 pcs

Sh2-216

28.2.2020 at 20.00 - 03.00 - Oulu (I)
Jukka-Pekka Metsavainio

There is very little footage of these objects, in the same six-degree image field there is a way for the star to end its life cycle. On the left is the planetary nebula Sh2-216 and on the right is the supernova residue Sh2-221. Sh2-216 is the closest and oldest known planetary nebula it is only 390 light-years away in the Constellation of the Driver and is very dim and wide due to its age. The supernova residue Sh2-221 is located 2600 light-years away from us, it is also a very dim object. Total exposure time 26h 300mm with f2.8 camera lens, narrowband filters and Apogee Alta U16 star camera. ...

Images: 2 pcs • Comments: 2 pcs

IC 443

28.2.2020 at 19.30 - 00.15 - Oulu (V)
Jukka-Pekka Metsavainio

Supernova Remnant In the constellation of Gemini, the image field also includes NGC 2175, Monkey Head Nebula, and the constellation Messier 35. I photographed the subject because I still wanted confirmation of the dim exterior of the Monkey Head Nebula. I haven’t seen this dim “curl” in other people’s pictures, usually the fog breaks in the pictures right after the brightest part. In the wide-ranging image, the opaque outer part also stands out clearly, using advanced imaging and processing techniques to bring it to the fore. Specifications and larger images on my blog, https://astroanarchy.bl...

Images: 4 pcs • Comments: 2 pcs

Simeis 147

19.2.2020 at 20.00 - 02.00 - Oulu (I)
Jukka-Pekka Metsavainio

Simeis 147 is a very broad and opaque supernova residue in the constellation Taurus. The remnants of a star that exploded about 30,000 years ago form a fibrous atmosphere spanning 160 light-years. The supernova expands at about a thousand kilometers per second. For fun, I calculated how long it would take for a gas cloud to be one percent larger in diameter. It would rumble for 480 years, a thousand kilometers per second was not a very wild pace on this scale. Note the image is marked in the lower left corner of the moon's diameter in the sky to give a scale of the object's size. The p...

Abell 85

14.2.2020 at 19.30 - 22.45 - Oulu (II)
Jukka-Pekka Metsavainio

CTB1, Abell 85, is a opaque supernova remnant in the constellation of Cassiopeia at a distance of about 9800 light-years. I now photographed the subject's camera lens Tokina AT-x 300mm f2.8. I have previously photographed a subject with a much longer focal length. It’s nice to see the object in a broader context now, I also made a two-panel mosaic of it with the Cosmic Question Mark I photographed recently, Cederblad 214. More information and much bigger pictures on my blog, https://astroanarchy.blogspot.com/2020/02/ctb1-supernova-remnant-in-cassiopeia.html Pictures, 1. CTB1 in an image fi...

Images: 3 pcs

Cederblad 214

6.2.2020 at 19.20 - 21.40 - Oulu (V)
Jukka-Pekka Metsavainio

I repeatedly described this cosmic question mark on the border between Cepheus and Cassiopeia. The question mark is formed by Cederblad 214, surrounded by NGC 7822, and the farther emission mist forming the point, the Sharpless 170. Cederblad 214 is located 2750 light-years from us. This is a wide subject, the area of the image is six degrees in height. The shooting equipment is Tokina AT-x 300mm f2.8 camera optics, Astrodo narrowband filters and Apogee underneath U16 astrocamera. More photos and technical information on my blog, https://astroanarchy.blogspot.com/2020/02/new-photo-of-cederblad...

NGC 1499

21.1.2020 at 23.00 - 01.45 - Oulu (V)
Jukka-Pekka Metsavainio

Add footage with wide-angle shooting equipment. The subsampling power is high, with a spatial resolution of 6 arcseconds / pixel per pixel, there will be a lot of photons, exactly 36 times more than with a small pixel camera with the same optics that would give a resolution of 1 arcsecond / pixel. At this resolution, small stars should not appear as squares, but this is not the case in practice. The reason is the slight movement of the camera between partial exposures, while stacking images, the stars become small spins again. The reason is the "drizzle technique" which provides more resolutio...

Images: 2 pcs

Sh2-155

14.1.2020 at 00.00 - 03.00 - Oulu (IV)
Jukka-Pekka Metsavainio

A wide-ranging shot of the constellation Kafaeus captured with 300mm f2.8 camera optics, Astrodo narrowband filters and the Apogee Alta U16 astrocamera. The picture highlights Cave Fog, Bubble Fog, Sharpless 157 and numerous other items. The image area is about six degrees to its edge. (The apparent diameter of the moon in the sky is 0.5 degrees) The two images, the first showing the object in the HST palette, the second image, the narrowband channels are combined so that the view corresponds to the color world seen by the eye. More information on my blog, https://astroanarchy.blogspot.com/202...

Images: 2 pcs

IC 1499

10.1.2020 at 00.00 - 01.00 - Oulu (V)
Jukka-Pekka Metsavainio

Previously, I published a version of the same subject in visual colors depicting hydrogen and oxygen emissions. I also got a description of sulfur emission, so now I’m releasing a version in the Hubble palette. I like the images in the HST palette for aesthetic reasons, but also because this way the different emission ranges stand out well. Sulfur and hydrogen both emit a red color, so their areas become mixed. In front of the tip of the heart is an old supernova remnant, SNR 132.7 + 1.3, of which I have not seen any pictures before. I tried to shoot it years ago but the image field of the sto...

Images: 2 pcs

IC1396

9.1.2020 at 18.37 - 22.43 - Oulu (V)
Jukka-Pekka Metsavainio

IC1396 was the first light for "new" imaging equipment. The combination of a camera lens and an isopixel CCD efficiently picks up photons. Subsampling is not a bad rod at all when you want to record a really dim gas glow from the night sky, the shooting resolution is 5 arcseconds / pixel. About the hardware on my blog, https://astroanarchy.blogspot.com/2020/01/the-frankenstein-monster-my-current.html The picture shows, 2h H-alpha, 1h O-III and 0.5h S-II, light and still goes very deep. For information on the image, etc. on the blog, https://astroanarchy.blogspot.com/2020/01/first-light-for-win...

Images: 5 pcs • Comments: 2 pcs

IC1805

9.1.2020 at 00.00 - 03.00 - Oulu
Jukka-Pekka Metsavainio

I only got to start the shooting season in January, partly due to the weather and partly due to hardware problems. I’m kind of “between the pipes,” meaning the new shooting equipment is just making its arrival. I tuned the actual photon vacuum from the wax Tokina AT-X 300mm f2.8 optics and the 9 Micron pixel Apogee Alta U16 camera. Subsampling is a good thing when describing dim and wide mists. I got the lens nailed to the camera using brute force, for example I shortened the lens with an angle grinder. Pictures of not so pretty hardware here: https://astroanarchy.blogspot.com/2020/01/the-fran...

Images: 2 pcs • Comments: 3 pcs

Ou4

25.11.2018 at 18.00 - Oulu (I)
Jukka-Pekka Metsavainio

"Giant Squid" or Ou4 is the dimmest item I've ever photographed! I shot a total of 48h hours of exposures over several months. 15h light 4x4 bin O-III + 10h 2x2 bin O-III, ie a total of 35h. In addition, 10h hydrogen H-alpha light and 3h sulfur S-II light. So a total of 48h exposures. The blog features one 4x4 bin 20 min calibrated O-III screen. You can see what kind of object it is! The blog also has more information about the site (in English) https://astroanarchy.blogspot.com/2018/11/a-giant-squid-ou4-imaging-project.html Figure 1 All color channels on display (Ha, S-II and O-III) Figur...

Images: 5 pcs • Comments: 6 pcs

NGC 7000

23.11.2018 at 18.00 - Oulu (V)
Jukka-Pekka Metsavainio

I have photographed a great deal of detail from the Swan constellation over the years. in particular, the North American and Pelican mists have been the subject of filming. I noticed in the distance many of my pictures overlapped with others, at least in part. I now photographed the missing parts in the fall to create a complete mosaic image of this diverse and extensive fog set. The result was a 16-image seamless mosaic of the North American and Pelican Nebula region. The finished image is really high resolution, about 16,000 x 16,000 pixels. The total exposure time with the mosaic is almost ...

Images: 6 pcs

LBN 243

3.11.2018 at 18.00 - Oulu (II)
Jukka-Pekka Metsavainio

LBN 243 is a dull emission mist in the constellation of Swan. The area of the image covers about one square degree of the sky. I once photographed a large mosaic of almost the entire constellation of Swan. I have used this image as a map for dimly, rarely, or never, photographed subjects. I have never seen an image focused on this formation before. A very faint luster was also found in the ionized oxygen (O-III) channel, it appears bluish in the picture. Photos: 1. Picture in the Hubble palette 2. Visual colors from narrowband channels 3. Widescreen image with LBN 243 marked with cropping More...

Images: 3 pcs

G82.2 + 5.3 W63

26.10.2018 at 13.33 - Oulu (I)
Jukka-Pekka Metsavainio

A very rare sample of the supernova remnant of the Swan constellation W63. The elliptical residue glows very dimly in the band of ionized oxygen (O-III). I have not seen pictures of this before in which the whole residue would stand out clearly. W63 is located in the western part of the large gas formation of the Swan constellation. It is a mosaic picture with a combination of 12 separate shots. The total exposure time is about 100h, of which oxygen accounts for more than 30h. Oxygen will be exposed mainly this autumn to other channels in 2015-2018. Photos: 1. Hubble palette image 2. Visual co...

Images: 5 pcs • Comments: 5 pcs

NGC 7000

27.11.2016 at 18.00 - Oulu (V)
Jukka-Pekka Metsavainio

A new photography project in the constellation Joutsenen was completed. I photographed a lot of the observed object, the North American fog. The aim was to describe a new perspective on a familiar object by choosing less frequently described details as the subject. I ended up making a mosaic combination of three images of the object, even though the individual frames function as independent images. the total exposure for the whole mosaic is about 16 h with emission line filters, hydrogen, oxygen and sulfur emissions. Larger pictures and technical information can be found on my blog, https://as...

Images: 5 pcs • Comments: 6 pcs

Harsosumu

8.11.2016 at 20.00 - Oulu (V)
Jukka-Pekka Metsavainio

during November, I filmed several nights of Harsosumu supernova remnant in the constellation of Swan. I made a mosaic picture of the new exposures and connected to it the "Witch's Broom", or the western part of Harsosumu, which I had described earlier. In the moon, I focused on the fibrous structures of the supernova remnant. Technical information and bigger pictures on my blog, https://astroanarchy.blogspot.fi/2016/11/filaments-of-veil-nebula-part-ii.html Pictures 1. Visual colors 2. Image of the HST palette 3. One of the partial images of the mosaic 4. The location is marked on an older ...

Images: 4 pcs

NGC 7000

8.10.2016 at 22.00 - Oulu (V)
Jukka-Pekka Metsavainio

The second published photo of Oulu of the season shows a detail of the North American fog. I always try to find a slightly different view of familiar objects, this brightness has been described very little separately. Total exposure for all channels, Ha, S-II and O-III, only 5 h. This is a relatively clear emission range. Pictures 1. Picture in the Hubble palette 2. The experimental starless version reveals the actual actual gas cloud 3. Picture of narrowband channels in visual colors 4. The location of the area now described is highlighted in the larger image

Images: 4 pcs • Comments: 1 pcs

Search result contains observations from time period 1.1.2000 klo 00.00 - 23.5.2022 klo 20.38.