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Observable comet count is 1957
Current exoplanet count is 6324
Current longitude II of the GRS is 90°
Today Monitor
Mars: January 16, 2025
Jupiter: January 10, 2026
Saturn: September 21, 2025
Uranus: November 21, 2025
Neptune: September 23, 2025
Evening: August 15, 2026 at 45.9°E
Morning: January 3, 2027 at 47.0°W
Morning: December 7, 2025 at 20.7°W
Evening: February 19, 2026 at 18.1°E
Morning: April 3, 2026 at 27.8°W
Evening: June 15, 2026 at 24.5°E
Morning: August 2, 2026 at 19.5°W
Evening: October 12, 2026 at 25.2°E
Morning: November 20, 2026 at 19.6°W
January 3: 225,130 mi (362,312 km)
November 24: 224,170 mi (360,768 km)
December 24: 221,667 mi (356,740 km)
given for 00:00 UT
| Date | Size | Age | Angle | Phase |
|---|---|---|---|---|
| 13 Apr 2026 | 30.89' | 24.94 | -6.797° | ![]() |
| 14 Apr 2026 | 31.37' | 25.94 | -6.885° | ![]() |
| 15 Apr 2026 | 31.85' | 26.94 | -6.540° | ![]() |
| 10 May 2026 | 30.42' | 22.51 | -7.002° | ![]() |
| 11 May 2026 | 30.85' | 23.51 | -7.546° | ![]() |
| 12 May 2026 | 31.34' | 24.51 | -7.695° | ![]() |
| 13 May 2026 | 31.86' | 25.51 | -7.381° | ![]() |
| 14 May 2026 | 32.37' | 26.51 | -6.565° | ![]() |
| 22 May 2026 | 32.03' | 5.17 | 6.635° | ![]() |
| 23 May 2026 | 31.56' | 6.17 | 7.101° | ![]() |
| 24 May 2026 | 31.11' | 7.17 | 7.159° | ![]() |
| 25 May 2026 | 30.71' | 8.17 | 6.868° | ![]() |
| 07 Jun 2026 | 30.39' | 21.17 | -7.053° | ![]() |
| 08 Jun 2026 | 30.79' | 22.17 | -7.626° | ![]() |
| 09 Jun 2026 | 31.25' | 23.17 | -7.834° | ![]() |
| 10 Jun 2026 | 31.75' | 24.17 | -7.603° | ![]() |
| 11 Jun 2026 | 32.25' | 25.17 | -6.885° | ![]() |
| 19 Jun 2026 | 32.20' | 3.88 | 6.768° | ![]() |
| 20 Jun 2026 | 31.68' | 4.88 | 7.364° | ![]() |
| 21 Jun 2026 | 31.18' | 5.88 | 7.508° | ![]() |
| 22 Jun 2026 | 30.71' | 6.88 | 7.253° | ![]() |
| 23 Jun 2026 | 30.31' | 7.88 | 6.670° | ![]() |
| 05 Jul 2026 | 30.48' | 19.88 | -6.530° | ![]() |
| 06 Jul 2026 | 30.82' | 20.88 | -7.017° | ![]() |
| 07 Jul 2026 | 31.21' | 21.88 | -7.189° | ![]() |
| 08 Jul 2026 | 31.64' | 22.88 | -6.986° | ![]() |
| 18 Jul 2026 | 31.76' | 3.60 | 6.894° | ![]() |
| 19 Jul 2026 | 31.25' | 4.60 | 7.142° | ![]() |
| 20 Jul 2026 | 30.77' | 5.60 | 6.982° | ![]() |
| 21 Jul 2026 | 30.35' | 6.60 | 6.469° | ![]() |
| 19 Nov 2026 | 30.64' | 9.71 | -6.939° | ![]() |
| 20 Nov 2026 | 31.11' | 10.71 | -7.238° | ![]() |
| 21 Nov 2026 | 31.62' | 11.71 | -7.063° | ![]() |
| 01 Dec 2026 | 31.73' | 21.71 | 6.670° | ![]() |
| 02 Dec 2026 | 31.32' | 22.71 | 6.898° | ![]() |
| 03 Dec 2026 | 30.93' | 23.71 | 6.823° | ![]() |
| 04 Dec 2026 | 30.59' | 24.71 | 6.497° | ![]() |
| 16 Dec 2026 | 30.14' | 6.96 | -6.743° | ![]() |
| 17 Dec 2026 | 30.53' | 7.96 | -7.511° | ![]() |
| 18 Dec 2026 | 30.98' | 8.96 | -7.903° | ![]() |
| 19 Dec 2026 | 31.49' | 9.96 | -7.840° | ![]() |
| 20 Dec 2026 | 32.03' | 10.96 | -7.269° | ![]() |
| 29 Dec 2026 | 31.92' | 19.96 | 7.182° | ![]() |
| 30 Dec 2026 | 31.41' | 20.96 | 7.556° | ![]() |
| 31 Dec 2026 | 30.94' | 21.96 | 7.540° | ![]() |
| Date | Size | Age | Angle | Phase |
|---|---|---|---|---|
| 06 Apr 2026 | 29.57' | 17.94 | 6.680° | ![]() |
| 07 Apr 2026 | 29.51' | 18.94 | 6.724° | ![]() |
| 08 Apr 2026 | 29.52' | 19.94 | 6.480° | ![]() |
| 20 Apr 2026 | 33.00' | 2.51 | -6.607° | ![]() |
| 21 Apr 2026 | 32.84' | 3.51 | -6.460° | ![]() |
| 03 May 2026 | 29.54' | 15.51 | 6.518° | ![]() |
| 04 May 2026 | 29.46' | 16.51 | 6.605° | ![]() |
| 05 May 2026 | 29.44' | 17.51 | 6.405° | ![]() |
| 17 May 2026 | 33.33' | 0.17 | -6.476° | ![]() |
| 18 May 2026 | 33.34' | 1.17 | -6.448° | ![]() |
| 30 May 2026 | 29.51' | 13.17 | 6.463° | ![]() |
| 31 May 2026 | 29.43' | 14.17 | 6.568° | ![]() |
| 13 Jun 2026 | 33.11' | 27.17 | -6.427° | ![]() |
| 14 Jun 2026 | 33.36' | 28.17 | -6.531° | ![]() |
| 26 Jun 2026 | 29.56' | 10.88 | 6.527° | ![]() |
| 27 Jun 2026 | 29.45' | 11.88 | 6.652° | ![]() |
| 28 Jun 2026 | 29.41' | 12.88 | 6.490° | ![]() |
| 10 Jul 2026 | 32.49' | 24.88 | -6.447° | ![]() |
| 11 Jul 2026 | 32.86' | 25.88 | -6.669° | ![]() |
| 12 Jul 2026 | 33.13' | 26.88 | -6.449° | ![]() |
| 23 Jul 2026 | 29.74' | 8.60 | 6.610° | ![]() |
| 24 Jul 2026 | 29.56' | 9.60 | 6.784° | ![]() |
| 25 Jul 2026 | 29.47' | 10.60 | 6.664° | ![]() |
| 06 Aug 2026 | 31.97' | 22.60 | -6.454° | ![]() |
| 07 Aug 2026 | 32.28' | 23.60 | -6.764° | ![]() |
| 08 Aug 2026 | 32.55' | 24.60 | -6.663° | ![]() |
| 19 Aug 2026 | 30.03' | 6.27 | 6.582° | ![]() |
| 20 Aug 2026 | 29.77' | 7.27 | 6.838° | ![]() |
| 21 Aug 2026 | 29.60' | 8.27 | 6.792° | ![]() |
| 22 Aug 2026 | 29.52' | 9.27 | 6.456° | ![]() |
| 03 Sep 2026 | 32.04' | 21.27 | -6.743° | ![]() |
| 04 Sep 2026 | 32.20' | 22.27 | -6.729° | ![]() |
| 16 Sep 2026 | 30.00' | 4.86 | 6.742° | ![]() |
| 17 Sep 2026 | 29.76' | 5.86 | 6.785° | ![]() |
| 18 Sep 2026 | 29.61' | 6.86 | 6.531° | ![]() |
| 30 Sep 2026 | 32.24' | 18.86 | -6.599° | ![]() |
| 01 Oct 2026 | 32.32' | 19.86 | -6.660° | ![]() |
| 13 Oct 2026 | 30.13' | 2.34 | 6.547° | ![]() |
| 14 Oct 2026 | 29.88' | 3.34 | 6.667° | ![]() |
| 15 Oct 2026 | 29.68' | 4.34 | 6.483° | ![]() |
| 27 Oct 2026 | 32.60' | 16.34 | -6.403° | ![]() |
| 28 Oct 2026 | 32.75' | 17.34 | -6.553° | ![]() |
| 09 Nov 2026 | 30.10' | 29.34 | 6.404° | ![]() |
| 10 Nov 2026 | 29.88' | 0.71 | 6.566° | ![]() |
| 11 Nov 2026 | 29.70' | 1.71 | 6.425° | ![]() |
| 24 Nov 2026 | 32.95' | 14.71 | -6.524° | ![]() |
| 06 Dec 2026 | 30.03' | 26.71 | 6.414° | ![]() |
| 07 Dec 2026 | 29.82' | 27.71 | 6.594° | ![]() |
| 08 Dec 2026 | 29.65' | 28.71 | 6.474° | ![]() |
| 21 Dec 2026 | 32.55' | 11.96 | -6.593° | ![]() |
| 22 Dec 2026 | 32.99' | 12.96 | -6.555° | ![]() |
Source: NASA/GSFC
Source: apod.nasa.gov
Mirror: star.ucl.ac.uk
Sorry, currently unavailable.
6 July 2026
In new images from the NASA/ESA/CSA James Webb Space Telescope to celebrate its fourth science anniversary, a familiar galaxy transforms into something far richer, and far more complex, than ever seen before. Webb’s unprecedented sensitivity across near- and mid-infrared wavelengths cuts through the thick lanes of dust that obscure Centaurus A’s centre in visible light, showing a densely packed tapestry of individual stars and an active, everchanging galaxy. These images mark four years of better-than-anticipated performance and successful science operations for the most powerful space telescope in history.
Source: esawebb.org
Image/illustration credit: NASA/JPL-Caltech/ASU
2026-03-13 Exoplanets
On Feb 6, 2026, NASAs SPARCS Mission returned first images of an exoplanet, HD 71262, in both, near-UV and far-UV. SPARCS' mission is for monitoring flares and sunspot activity on low-mass stars about 30% to 70% the mass of the Sun which are likely to host rocky planets inside their habitable zones. Link to source 🔗
Image/illustration credit: astropical.space
2026-02-08 solar system
AR4366 stands out as the most active sunspot of early 2026, producing an extraordinary sequence of high‑energy flares and posing meaningful space‑weather risks as it faces Earth. Its behavior is characteristic of a highly unstable, rapidly evolving magnetic system capable of generating the strongest solar eruptions of the cycle. Ø71mm APO, IMX178 camera.
Backlog
No, we are not on Facebook but proudly on AstroBin with Mille Gracie to the author Salvatore Iovene:

If anybody is interested in the night life of bats, here is a funny 1-minute MP4 video (24MB).
The author's first steps into video editing. They are about Deepsky & Lunar imaging, Milky Way & Constellations, Solar System, Apollo Missions, Artemis II and LROC.
Now also on YouTube
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| Constellation | Cassiopeia |
| Distance | 100.05 parsec (326.37ly) |
| Magnitude | 10.95 vis. |
| Mass | 0.88 xSun |
| Radius | 0.849 xSun |
| Temperature | 5146°K |
| Known planet(s) | 2 |
Nan Chuan (The Car) in Car [HIP 52419]
Distance: 439 light-years, Magnitude: 2.74
Theta Carinae's name is Chinese for Southern Boat. It is the brightest star in the open star cluster IC 2602, the Southern Pleiades). It is a main sequence star with 14.9 solar masses and 5.1 solar radii, outshining the sun 26,000 times. It rotates moderately at 108 km/s. Theta was created by stellar interaction (a 'blue straggler'). A companion orbits every 2.2 days, one of the shortest known binary periods.
Star Chart | DSS IR Image 🔗Archid B (eta Cassiopeiae B) in Cassiopeia
Distance: 19 light-years, Magnitude: 7.2
Eta Cassiopeiae B (Archid B or GJ 34 B) is the companion of eta Cassiopeiae A forming a spectroscopic binary pair in a 480 years orbit (eccentricity 0.5) at a mean distance of 71 (36 to 106) AU. B has 57% the mass of the sun and measures 0.66 solar radii.
Star Chart | DSS IR Image 🔗

M42 (Diffuse Nebula) in Orion
Magnitude: 4
Well known as a massive star formation region, this diffuse nebula, Messier 42 or NGC 1976, lies some 1350 ly away shinning at 4 magnitudes in Orion. It has about 2000 solar masses, spans 24 ly across in space and 65' x 60' apparent in the sky. It contains a young star cluster at its core, dubbed the “Trapezium”, a 1.5 ly wide asterism of four hefty stars. Ultraviolet light unleashed by these stars is carving a cavity in the nebula and disrupting the growth of hundreds of smaller stars. Also observed within the nebula are protoplanetary disks and brown dwarfs, intense and turbulent motions of gas, as well as photo-ionizing effects of massive nearby stars.
Star Chart | DSS IR Image 🔗Reticulum (southern), area rank: 82

A rhombus-shaped constellation made of 3rd and 4th-magnitude stars. It can be seen at 25 degrees northern latitude in January on the southern horizon, but is hard to find because of its low elevation. Reticulum is Latin for "reticle", crosshair lines such as used in telescopes, or a gauge.
Star Chart62P/Tsuchinshan 1

Tsuchinshan 1, is a periodic comet discovered on 1965 January 1 at Purple Mountain Observatory, Nanking.
Bamberga (Asteroid)
Semi-major: 2.68477 AU, Size: 235 km

Discovered by Johann Palisa on February 25, 1892 in Vienna. Apart from the near-Earth asteroid Eros, it was the last asteroid which is ever easily visible with binoculars to be discovered - overall the tenth brightest main-belt asteroid. With an unusually long rotation period of 29.43 hours, the asteroid has a mean mass of 1.1x1019kg and a density of 1.52g/cm³.
Nix (moon of Pluto)

Nix is the third largest natural satellite of Pluto discovered in 2005 by the Hubble Space Telescope. Nix has been measured to be 54 x 41 x 36 km in diameter, indicating a very elongated shape, and a very high geometric albedo.
HD 92788 c (in Sextans)
Mass: 3.67 xJup
SMA: 10.5 AU
Period: 11611.3 days
Distance: 34.6538 parsec
Category: Cold Jovian
ESI: 0.08