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Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

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Moon

14.5.2022 at 23.45 - 23.50 - Vantaa, Pähkinärinne (IV)
Paula Wirtanen, Ursa (Helsinki)

The fine, almost full Moon ushered inside the living room window. The sky was more or less partly cloudy, I still thought to try shooting a suitable cloud. And it worked. A little cloud can be seen in that main picture as well.

Images: 2 pcs

Algieba (Gamma Leonis)

9.5.2022 at 23.40 - Vantaa, Pähkinärinne
Paula Wirtanen, Ursa (Helsinki)

Two stars are very rarely observed here in the Sky Watch, even though they look pretty nice. The moon was nicely close to Regulus and Algieba yesterday, so at the end of a great lunar observation, I still wanted to explore the often-forgotten great double star, Gamma Leon aka Algieba, the lion's neck star (Algieba means lion's crest). With a 10x eyepiece at 150x magnification, the star was already clearly visible in two, quite close pairs. At 250x magnification, it already clearly distinguished the difference in the size of the stars. In the most handsome double stars, like Albireo, th...

Images: 2 pcs

Suora valli (Rupes Recta)

9.5.2022 at 23.31 - Vantaa, Pähkinärinne (IV)
Paula Wirtanen, Ursa (Helsinki)

The Straight Wall of the Moon (Rupes Recta), a stack of three images slightly sharpened. But it was quite clear. #Lunar100: 015

Clavius

9.5.2022 at 23.16 - Vantaa, Pähkinärinne (V)
Paula Wirtanen, Ursa (Helsinki)

Sunrise in Clavius. Clavius dominated the terminator handsomely. The moon was behind a thin cloud, but fortunately was still able to detect it. Clavius looked as if from there he was watching the two wedging eyes towards the observer.

Comments: 1 pcs

Alphonsus and Alpetragius

9.5.2022 at 23.05 - 23.20 - Vantaa, Pähkinärinne (III)
Paula Wirtanen, Ursa (Helsinki)

A small, thin cloud was in front of the Moon and at first I wondered if the detection would be anything at all. Well, it came from it, even though the contrast was a little worse than a clear sky. The smallest details were not visible, but the Moon was still worth admiring for a longer time. Clavius was still in the shadows at the terminator and was the finest and most eye-catching target on the Moon. Similarly, Tycho stood out nicely and in addition to these I also took a photo of the Straight Wall . However, I feel like I haven’t quite perceived the Moon unless I’m drawing something on paper...

Hail in the summer season

8.5.2022 at 15.38 - Vantaa, Myyrmäki
Paula Wirtanen, Ursa (Helsinki)

It rained for about ten minutes. However, the temperature was brisk on the plus side, so it melted pretty much right away. Standed out from a very dark jacket.

Serpensharjanne (Dorsa Smirnov, Dorsa Lister, Dorsum Nicol)

6.5.2022 at 22.28 - Vantaa, Pähkinärinne
Paula Wirtanen, Ursa (Helsinki)

A single image of the eastern edge of Mare Serenitatis, where the ridges known as the Snake Ridge really stood out. Quite interestingly, this lighting also distinguished the "eyes" peeking from the dark side of the terminator, which are the ramparts of the craters that the Sun's light hits while the bottom is still hidden. The most obvious peeking eyes are Posidonius N and Sarabhai (Bessel A). Vesa Puistovaara distinguishes the area from the Taurus-Littrow area and Posidonius from the observation made at the same time . #Lunar100: 033

Theophilus, Cyrillus, Catharina

6.5.2022 at 22.20 - 22.40 - Vantaa, Pähkinärinne (V)
Paula Wirtanen, Ursa (Helsinki)

Great air, the birds were still singing and the brightest stars stood out of the sky. The moon was six months old and still clearly separated the country house with the naked eye. The trio Theophilus, Cyrillus and Catharina were in excellent lighting conditions waiting for an avid observer. Seeing was between pretty good and mediocre, however, at 250x magnification, I was able to explore the surface of the Moon without the distracting dancing of the image. The edge shadows were especially fine, you can see how the edges of the craters are anything but flat. The edges of the bottom shadow of th...

Images: 2 pcs

Mare Crisium

4.5.2022 at 21.50 - 22.05 - Vantaa, Pähkinärinne (IV)
Paula Wirtanen, Ursa (Helsinki)

The rising crescent moon was reasonably high in the western sky after sunset. I started the observations well in advance before the sickle dropped unnecessarily low. Yes, you notice the early twilight, the background sky was clearly blue and the contrast was not as good as when you saw the darker Moon. However, the seeing was quite reasonable. Mare Crisium was nicely displayed, especially on its western edge with suitable shadows. The Yerkes, almost ghostly on the surface, stood out clearly, as did the Yerkes E and the strain between them. Under suitable lighting conditions, these sometimes re...

Moon

11.4.2022 at 22.07 - Vantaa, Pähkinärinne
Paula Wirtanen, Ursa (Helsinki)

Moon. Stack of three pictures.

Palus Epidemiarum & Capuanus

11.4.2022 at 21.51 - Vantaa, Pähkinärinne (V)
Paula Wirtanen, Ursa (Helsinki)

Huuh ... the recent news seemed very topical as I was exploring the Moon. The terminator offered exceptionally great views of the Palus Epidemiarum (Swamp of the Epidemics) and Lacus Timoris (Lake Pelon). Capuanus became the target of the drawing observation. Its diameter is sixty kilometers. Capuanus is a lava-based crater whose ramparts are partly quite worn. The notch on the southern edge of the Capuanus ramparts stood out clearly. To the south-east there is Capuanus A and an unnamed satellite crater, to the south of the main crater is Capuanus D and the slightly larger edge from Capuanus E...

Images: 3 pcs

Sinus Iridum

11.4.2022 at 21.32 - Vantaa, Pähkinärinne (V)
Paula Wirtanen, Ursa (Helsinki)

Rainbow bay and golden handle. Single image on a mobile device through a 10 mm eyepiece. #Lunar100: 014

Humboldtianumin allas

3.4.2022 at 21.00 - 21.10 - Vantaa, Pähkinärinne (II)
Paula Wirtanen, Ursa (Helsinki)

The narrow crescent moon was quite invitingly visible in the courtyard. The weather was almost clear and yes the Moon was quite visible most of the time. But some kind of thin cloud seemed to be a nuisance. Still considering the shallowness of the sickle, it is no wonder that not much detail was distinguished. However, in my time I admired the Moon so narrow and recognized the familiar craters. Gauss, Hahn, and Berosus stood out, but not as strange bumps. When I switched to a larger magnification, the telescope didn't really show anything at all: now the transparency and seeing would be pr...

Moon

2.4.2022 at 20.51 - Vantaa, Pähkinärinne
Paula Wirtanen, Ursa (Helsinki)

The 35.5-hour-old Moon, illuminated by about 2.3%, low in an almost clear spring evening. Looked nice in the backyard. The camera clock was in normal time.

Images: 2 pcs

Einstein

17.3.2022 at 21.30 - Vantaa, Pähkinärinne
Paula Wirtanen, Ursa (Helsinki)

A little poor seeing, but thanks to Jari Kuula I got to hear today that the Einstein crater may be noticeable. That's a pretty tricky case. The full moon was really bright and shadows were clearly visible from the south side due to decent libration. Einstein's direction was a little more awkward, visually the hole was visible at the appropriate point, but nothing is very clear from the point of view of drawing observation. I grabbed a series of pictures from the area and that western edge of the Moon is quite nice to see - from here, Einsteink peeks behind the edge. Great. Figure 1 sho...

Images: 2 pcs

Drygalski

17.3.2022 at 21.26 - Vantaa, Pähkinärinne (IV)
Paula Wirtanen, Ursa (Helsinki)

The southern edge of the moon during good libra is worth admiring. The South Pole region of the moon was again possible to photograph. Hausen peeked from behind Baillyn. The bottom of the crater was in the shade, but the curbs were clearly visible. Drygalskin was easily found, next to it was a clearly noticeable notch, which is Ashbrook . #Lunar100: 094 Drygalski

Moon

17.3.2022 at 21.15 - Vantaa, Pähkinärinne (V)
Paula Wirtanen, Ursa (Helsinki)

Full moon. It made sense to howl in the backyard while admiring this. Ligation large to the south, somewhat to the west (shadows are clearly visible in the south and the western edge of the Oceanus Procellarum is visible).

Mare Orientale

17.3.2022 at 21.10 - 21.20 - Vantaa, Pähkinärinne (III)
Paula Wirtanen, Ursa (Helsinki)

Full moon time. The main focus of the evening at that time was Einstein, but it was not worth wasting a great moonlight anyway and I got to admire more at the same time. The Orientale pool (Mare Orientale and its surroundings, including the Lacus Veris and Lacus Autumni lakes) is more visible. Now I couldn’t see all the way to the opposite shore, but the shadows helped to see the area a little more closely. Lacus Veris (Spring Lake) is an outer, slightly annular formation around the Mare. It was more visible now than usual. The outer ring of the pool was not separated from the brightness of th...

Darwin and Lamarck

16.3.2022 at 22.18 - Vantaa, Pähkinärinne (V)
Paula Wirtanen, Ursa (Helsinki)

When you look at the moon for the first time, your attention was drawn to the handsome shadow in the southwest. There should be no such thing. Nearby, a pair of craters, Darwin and Lamarck , stood out, with the terminator nearing the end of July (illuminated by 97%) running near the outermost parts of the Orientale basin . Darwin and Lamarck are old plateaus over 100 kilometers in diameter that are paired on the surface of the Moon. The third, smaller crater fused to these is Lamarck A. The dark-bottomed small crater north of these is Crüger . Just west of Lamarck, the terminator has the massi...

Images: 2 pcs

Bailly

16.3.2022 at 22.00 - 22.15 - Vantaa, Pähkinärinne (IV)
Paula Wirtanen, Ursa (Helsinki)

Bailly Crater is located on the southwestern edge of the Moon in the libra area. At its worst, the northernmost parts of it may be visible, but when the southern libra is great, you can see it completely and the Hauseck , which is visible from behind, may then be in the field of view. Bailly is named after Jean Sylvain Bailly , a French astronomer and politician. He should not be confused with the British Francis Bailyy (with one L) born a little later, who is remembered for Baily’s pearls associated with complete eclipses. Francis Baily got its name from the surface of the Moon on the isthmus...

Search result contains observations from time period 1.1.2000 klo 00.00 - 22.5.2022 klo 7.35.