OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

34.78°N, 135.40°EAsia/Tokyo

Deep Astronomical Night-43.6° (< −18°)

02:38:15

Sat, Oct 24, 2026

PHOTOMETRIC TWILIGHT SPECTRUM10h 8m of true darkness · 12h 57m total night

DaylightCivil (−6°)Nautical (−12°)Astro (−18°)Dark Sky (<−18°)

TRUE DARK SKY WINDOW

Sunset17:14

Civil Dusk17:40

Nautical18:09

Full Dark18:38

Nadir23:42

Dark Ends04:46

Nautical05:16

Civil Dawn05:45

Sunrise06:11

LIVE REAL-TIME OBSERVATION

SunsetSunrise

LOCAL SKY PLANISPHERE · STEREOGRAPHIC PROJECTION

All-Sky Nocturnal Dome

Click any body to inspect telemetry

LUNAR EPHEMERISWaxing Gibbous

ILLUMINATION93%

ALTITUDE13.1°

DISTANCE380,056 km

Moonrise15:24

Moonset03:48

HorizonAbove

LUNAR INTERFERENCE INDEX21% · Minimal Lunar Glare

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

ATMOSPHERIC SEEING & CLOUD PROFILETonight's Index

84/100

Good Stargazing

Fine observing conditions. Open star clusters and nebulae will exhibit crisp structure.

CLOUD COVER15%

HUMIDITY50%

VISIBILITY18 km

DEW POINT10.8°C

PLANETARY EPHEMERIS & ALMANAC

Visible Planets Tonight

All times calibrated to Asia/Tokyo

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Below Horizon	-4.3	-45.9°	80°	Libra	06:23	11:33	16:48	Naked Eye
Jupiter♃	Visible Low	-2.0	21.5°	87°	Leo	00:49	07:32	14:15	Naked Eye
Saturn♄	Visible Low	0.3	23.6°	254°	Pisces	16:25	22:30	04:36	Naked Eye
Mars♂	Optimal Visibility	1.0	30.3°	88°	Cancer	00:04	06:58	13:52	Naked Eye
Mercury☿	Below Horizon	0.4	-64.3°	64°	Libra	07:58	12:58	18:03	Binoculars
Uranus♅	Optimal Visibility	5.6	74.1°	212°	Taurus	18:58	02:02	09:05	Binoculars
Neptune♆	Visible Low	7.8	16.6°	258°	Pisces	16:00	22:01	04:01	Telescope

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

RISES15:24

BEST TIME21:31S · 55° high

SETS03:48

Reaches about 55° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES00:49

BEST TIME07:32S · 70° high

SETS14:15

Reaches about 70° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:25

BEST TIME22:30S · 57° high

SETS04:36

Reaches about 57° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · Good height

RISES06:23

BEST TIME11:33S · 37° high

SETS16:48

Reaches about 37° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES00:04

BEST TIME06:58S · 73° high

SETS13:52

Reaches about 73° 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

0 / 6 targets logged tonight

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.