OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

37.15°N, 138.24°EAsia/Tokyo
Deep Astronomical Night-24.2° (< −18°)
04:02:08
Sat, Oct 24, 2026
PHOTOMETRIC TWILIGHT SPECTRUM10h 8m of true darkness · 13h 3m total night
DaylightCivil (−6°)Nautical (−12°)Astro (−18°)Dark Sky (<−18°)
TRUE DARK SKY WINDOW
Sunset17:00
Civil Dusk17:26
Nautical17:57
Full Dark18:27
Nadir23:31
Dark Ends04:35
Nautical05:05
Civil Dawn05:36
Sunrise06:02
LIVE REAL-TIME OBSERVATION
SunsetSunrise
LOCAL SKY PLANISPHERE · STEREOGRAPHIC PROJECTION

All-Sky Nocturnal Dome

Click any body to inspect telemetry
30° ALT60° ALTZENITHNESW Polaris Sirius Capella Rigel Betelgeuse Aldebaran Jupiter (-2.0) Saturn (0.3) Mars (1.0) Uranus (5.6)
LUNAR EPHEMERISWaxing Gibbous
ILLUMINATION93%
ALTITUDE-4.9°
DISTANCE379,742 km
Moonrise15:38
Moonset03:37
HorizonBelow
LUNAR INTERFERENCE INDEX0% · Minimal Lunar Glare

Sky background remains dark; faint nebulae and distant galaxies are distinct.

ATMOSPHERIC SEEING & CLOUD PROFILETonight's Index
92/100
Exceptional Stargazing

Pristine dark skies with clear transparency. Ideal for astrophotography & faint deep sky targets.

CLOUD COVER15%
HUMIDITY50%
VISIBILITY18 km
DEW POINT10.8°C
PLANETARY EPHEMERIS & ALMANAC

Visible Planets Tonight

PLANETSTATUSMAGNITUDEALTITUDEAZIMUTHCONSTELLATIONRISETRANSITSETEQUIPMENT
Venus♀ Below Horizon -4.3-26.4°93°Libra06:1711:2216:32Naked Eye
Jupiter♃ Optimal Visibility -2.040.4°104°Leo00:3407:2014:07Naked Eye
Saturn♄ Rising / Setting 0.34.3°269°Pisces16:1322:1904:25Naked Eye
Mars♂ Optimal Visibility 1.049.1°107°Cancer23:4706:4713:46Naked Eye
Mercury☿ Below Horizon 0.4-45.0°83°Libra07:5212:4717:46Binoculars
Uranus♅ Optimal Visibility 5.657.2°250°Taurus18:4101:5009:00Binoculars
Neptune♆ Below Horizon 7.8-2.3°272°Pisces15:4521:4903:50Telescope
TONIGHT'S VIEWING SCHEDULE

When & Where to Look Tonight

A simple guide to when each object is above your horizon. No astronomy chart reading required.

BEST TIMEHighest in your sky
The MoonNaked Eye · High in the sky
RISES15:38
BEST TIME21:20S · 53° high
SETS03:37
Reaches about 53° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.
JupiterNaked Eye · High in the sky
RISES00:34
BEST TIME07:20S · 67° high
SETS14:07
Reaches about 67° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.
SaturnNaked Eye · High in the sky
RISES16:13
BEST TIME22:19S · 54° high
SETS04:25
Reaches about 54° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.
VenusNaked Eye · Good height
RISES06:17
BEST TIME11:22S · 35° high
SETS16:32
Reaches about 35° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.
MarsNaked Eye · High in the sky
RISES23:47
BEST TIME06:47S · 71° high
SETS13:46
Reaches about 71° above the horizon at its highest point.Distinctive crimson hue; polar ice cap discernible near opposition.
OBSERVING LOG & TARGET LIST

Tonight's Prime Deep-Sky Targets

M31 / NGC 224 · Andromeda

Andromeda Galaxy

Spiral Galaxy (2.5M ly)

Our galactic neighbor; visible as a ghostly oval smudge with dense radiant stellar core.

M45 · Taurus

The Pleiades (Seven Sisters)

Open Star Cluster

Breathtaking blue diamond cluster enshrouded in delicate interstellar reflection nebulosity.

M42 / NGC 1976 · Orion

Great Orion Nebula

Diffuse Emission Nebula

Star nursery harboring the brilliant Trapezium cluster with sprawling bat-wing filaments.

NGC 869 & NGC 884 · Perseus

The Double Cluster

Twin Open Clusters

Pair of spectacular shimmering jewel-boxes bursting with ruby supergiant stars.

M13 / NGC 6205 · Hercules

Great Globular Cluster in Hercules

Globular Cluster (300k stars)

Massive beehive of ancient stars packed tightly together into a blazing central ball.

M57 / NGC 6720 · Lyra

The Ring Nebula

Planetary Nebula

Delicate glowing smoke-ring left behind by a dying star 2,500 light-years away.