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Astronomy Picture Of the Day (APOD)
APOD: 2023 February 26 B Saturns Iapetus: Moon with a Strange Surface
26.02.2023
What would make a moon look like a walnut? A strange ridge that circles Saturn's moon Iapetus's equator, visible near the bottom of the featured image, makes it appear similar to a popular edible nut.
Crescent Moon Occultation
25.02.2023
On February 22, a young Moon shared the western sky at sunset with bright planets Venus and Jupiter along the ecliptic plane. The beautiful celestial conjunction was visible around planet Earth. But from some locations Jupiter hid for a while, occulted by the crescent lunar disk.
Jones Emberson 1
24.02.2023
Planetary nebula Jones-Emberson 1 is the death shroud of a dying Sun-like star. It lies some 1,600 light-years from Earth toward the sharp-eyed constellation Lynx. About 4 light-years across, the expanding remnant...
APOD: 2023 February 23 Arp 78: Peculiar Galaxy in Aries
23.02.2023
Peculiar spiral galaxy Arp 78 is found within the boundaries of the head strong constellation Aries. Some 100 million light-years beyond the stars and nebulae of our Milky Way galaxy, the island universe is an enormous 200,000 light-years across.
APOD: 2023 February 22 B Our Increasingly Active Sun
22.02.2023
Our Sun is becoming a busy place. Only two years ago, the Sun was emerging from a solar minimum so quiet that months would go by without even a single sunspot. In contrast, already...
APOD: 2023 February 21 B Comet ZTF over Yosemite Falls
21.02.2023
They are both falling. The water in Yosemite Falls, California, USA, is falling toward the Earth. Comet ZTF is falling toward the Sun. This double cosmic cascade was captured late last month as fading Comet C/2022 E3 (ZTF) had just passed its closest to planet Earth. The orange star just over the falls is Kochab.
APOD: 2023 February 20 B NGC 1850: Not Found in the Milky Way
20.02.2023
There is nothing like this ball of stars in our Milky Way Galaxy. This is surprising because, at first glance, this featured image by the Hubble Space Telescope suggests that star cluster NGC 1850...
APOD: 2023 February 19 B Seven Dusty Sisters in Infrared
19.02.2023
Is this really the famous Pleiades star cluster? Known for its iconic blue stars, the Pleiades is shown here in infrared light where the surrounding dust outshines the stars. Here three infrared colors have been mapped into visual colors (R=24, G=12, B=4.6 microns).
Barred Spiral Galaxy NGC 1365 from Webb
18.02.2023
A mere 56 million light-years distant toward the southern constellation Fornax, NGC 1365 is an enormous barred spiral galaxy about 200,000 light-years in diameter. That's twice the size of our own barred spiral Milky Way.
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2023 CX1 Meteor Flash
17.02.2023
While scanning the skies for near earth objects Hungarian astronomer Kriszticn Scrneczky first imaged the meter-sized space rock now cataloged as 2023 CX1 on 12 February 2023 at 20:18:07 UTC. That was about 7 hours before it impacted planet Earth's atmosphere.
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