Highlights

• The Sun is in Taurus, the Moon is Waning Crescent in Pisces
• T CrB: magnitude 10.103 ± 0.005 [2025-05-22 10:49:21 UTC, CCD/CV, IDG/AAVSO]
• Comet C/2025 F2 (SWAN): magnitude 10.33 in Orion
• Comet C/2021 G2 (Atlas): magnitude 13.7 in Libra
• Comet P/2010 H2 (Vales): magnitude 13.74 in Virgo
• Next NEO approach: Asteroid (NEO) 2025 KC, May 23 2025 at 18:52 UTC, 1,023,922 km, 2.66 lunar distances
• Asteroid 3 Juno is close to opposition
• Asteroid 5 Astraea is close to opposition
• Asteroid 9 Metis is close to opposition
• Asteroid 349 Dembowska (1892 T) is close to opposition

Popular Objects

Popular objects during the last 7 days based on the number of visualizations.

Sun and Moon

How the Sun and the Moon look like today.

	R.A.	Decl.	Apparent Diameter	MagnitudeMag	ConstellationConst	Charts
radio_button_checked Sun	04h 01m 25s	+20° 38’ 31”	1,895.2”	-26.72 trending_flat	Taurus	map my_location
radio_button_checked Moon	00h 31m 41s	+03° 56’ 27”	1,962.6”	-8.50 trending_down	Pisces	map

The Planets

Current essential information about the planets. Click each planet to view full details.

Planet	R.A.	Decl.	Diameter	MagnitudeMag	ConstellationConst	Charts
radio_button_checked Mercury	03h 27m 58s	+18° 12’ 32”	5.2”	-1.47 trending_up	Taurus	map my_location
radio_button_checked Venus	01h 04m 37s	+05° 10’ 08”	26.5”	-4.51 trending_down	Pisces	map my_location
radio_button_checked Mars	09h 17m 48s	+17° 24’ 22”	5.8”	1.14 trending_down	Cancer	map my_location
radio_button_checked Jupiter	05h 42m 55s	+23° 10’ 59”	31.9”	-1.93 trending_flat	Taurus	map my_location
radio_button_checked Saturn	00h 02m 47s	-01° 57’ 28”	16.0”	1.11 trending_flat	Pisces	map my_location
radio_button_checked Uranus	03h 41m 34s	+19° 25’ 03”	3.4”	5.85 trending_flat	Taurus	map my_location
radio_button_checked Neptune	00h 08m 15s	-00° 30’ 41”	2.2”	7.79 trending_flat	Pisces	map my_location

Jupiter Moons

Position of the Galilean satellites of Jupiter. A dedicated tool is available, with more advanced features.

List of 5 upcoming phenomena of Jupiter's satellites:

Date	Local Time	Satellite	Event
May 23	16:20	Io	Begin Occultation
May 23	19:06	Io	End Eclipse
May 23	23:06	Europa	Begin Occultation
May 24	02:51	Europa	End Eclipse
May 24	13:41	Io	Begin Transit

To see the complete list of the upcoming phenomena for the next 7 days consult the dedicated Jupiter's Galilean Moons section.

Saturn Moons & Rings

Inclination of the rings of Saturn and positions of major satellites. A dedicated tool is available, with more advanced features.

Apparent Planet Sizes

Comparison between the apparent size of the planets, measured in seconds of a degree, as they appear today.

Credits for the planet images: NASA-APL - NASA.

Brightest Comets

List of the 10 brightest comets (open the full list of 243 comets).

	Comet	R.A.	Decl.	Magnitude (COBS)Mag Obs	Magnitude (JPL)Mag Pred		ConstellationConst	Charts
radio_button_checked	C/2025 F2 (SWAN)	05h 17m 49s	-07° 29’ 35”	-	10.33	trending_down	Orion Ori	map my_location
radio_button_checked	C/2021 G2 (Atlas)	15h 16m 06s	-05° 02’ 10”	13.7	14.88	trending_down	Libra Lib	map my_location
radio_button_checked	P/2010 H2 (Vales)	13h 08m 50s	+04° 58’ 52”	-	13.74	trending_down	Virgo Vir	map my_location
radio_button_checked	29P/Schwassmann-Wachmann	09h 42m 11s	+10° 16’ 04”	13.8	17.70	trending_flat	Leo Leo	map my_location
radio_button_checked	C/2024 J2 (Wierzchos)	01h 35m 44s	+11° 41’ 38”	-	14.70	trending_down	Pisces Psc	map my_location
radio_button_checked	C/2022 E2 (ATLAS)	01h 53m 10s	+49° 45’ 24”	-	15.37	trending_flat	Perseus Per	map my_location
radio_button_checked	C/2022 N2 (PANSTARRS)	01h 47m 43s	+15° 25’ 01”	-	15.46	trending_flat	Pisces Psc	map my_location
radio_button_checked	C/2023 A3 (Tsuchinshan-ATLAS)	19h 54m 20s	+27° 15’ 50”	15.5	14.39	trending_flat	Vulpecula Vul	map my_location
radio_button_checked	C/2024 G3 (ATLAS)	02h 24m 44s	-51° 48’ 10”	-	15.72	trending_down	Eridanus Eri	map my_location
radio_button_checked	C/2022 QE78 (ATLAS)	06h 58m 10s	+16° 42’ 50”	-	15.73	trending_flat	Gemini Gem	map my_location

We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.

Brightest Asteroids

List of the 10 brightest asteroids (open the full list of 78 asteroids and dwarf planets.)

	Asteroid	R.A.	Decl.	MagnitudeMag		ConstellationConst	Charts
radio_button_checked	4 Vesta	14h 33m 49s	-04° 01’ 36”	5.92	trending_down	Virgo	map my_location
radio_button_checked	1 Ceres	00h 22m 34s	-07° 47’ 18”	9.27	trending_flat	Cetus	map my_location
radio_button_checked	7 Iris	04h 12m 41s	+21° 58’ 25”	9.48	trending_up	Taurus	map my_location
radio_button_checked	6 Hebe	22h 01m 06s	-06° 58’ 42”	9.86	trending_up	Aquarius	map my_location
radio_button_checked	3 Juno	15h 36m 25s	-02° 05’ 51”	10.03	trending_down	Serpens	map my_location
radio_button_checked	9 Metis	14h 55m 15s	-13° 56’ 29”	10.03	trending_down	Libra	map my_location
radio_button_checked	2 Pallas	21h 06m 59s	+15° 06’ 18”	10.22	trending_up	Delphinus	map my_location
radio_button_checked	349 Dembowska	15h 02m 19s	-21° 44’ 48”	10.45	trending_down	Libra	map my_location
radio_button_checked	15 Eunomia	07h 19m 22s	+20° 10’ 52”	10.74	trending_down	Gemini	map my_location
radio_button_checked	5 Astraea	17h 14m 49s	-15° 05’ 12”	10.78	trending_up	Ophiuchus	map my_location

Active Meteor Showers

List of the currently active meteor showers.

	Name	Peak	Radiant R.A.	Radiant Decl.	ZHR ⓘ	Rating	Parent Object	Charts
radio_button_checked	Eta Aquariids	6 May	22h 30m	-01°	50	bright	1P/Halley	map
radio_button_checked	Daytime Arietids	7 Jun	02h 53m	+24°	50	medium	1566 Icarus ?	map