OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

46.68°N, 92.79°EAsia/Choibalsan

Deep Astronomical Night-47.9° (< −18°)

23:45:41

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM10h 8m of true darkness · 13h 30m total night

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

TRUE DARK SKY WINDOW

Sunset18:48

Civil Dusk19:19

Nautical19:54

Full Dark20:29

Nadir01:33

Dark Ends06:37

Nautical07:12

Civil Dawn07:47

Sunrise08:18

LIVE REAL-TIME OBSERVATION

SunsetSunrise

LOCAL SKY PLANISPHERE · STEREOGRAPHIC PROJECTION

All-Sky Nocturnal Dome

Click any body to inspect telemetry

LUNAR EPHEMERISWaxing Gibbous

ILLUMINATION92%

ALTITUDE43.9°

DISTANCE380,478 km

Moonrise17:18

Moonset05:51

HorizonAbove

LUNAR INTERFERENCE INDEX64% · Heavy Lunar Wash

Bright moonlight washes out deep sky targets. Focus on lunar craters and bright planets.

ATMOSPHERIC SEEING & CLOUD PROFILETonight's Index

69/100

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/Choibalsan

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Below Horizon	-4.3	-54.4°	316°	Libra	08:40	13:29	18:10	Naked Eye
Jupiter♃	Below Horizon	-2.0	-20.6°	37°	Leo	02:16	09:22	16:31	Naked Eye
Saturn♄	Optimal Visibility	0.3	44.1°	168°	Pisces	18:12	00:20	06:29	Naked Eye
Mars♂	Below Horizon	1.0	-13.7°	43°	Cancer	01:25	08:48	16:14	Naked Eye
Mercury☿	Below Horizon	0.4	-44.3°	288°	Libra	10:21	14:52	19:19	Binoculars
Uranus♅	Optimal Visibility	5.6	34.3°	95°	Taurus	20:13	03:52	11:30	Binoculars
Neptune♆	Optimal Visibility	7.8	42.9°	178°	Pisces	17:50	23:51	05:51	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 · Good height

RISES17:18

BEST TIME23:27S · 44° high

SETS05:51

Reaches about 44° above the horizon at its highest point.Waxing Gibbous (92% illuminated). Heavy Lunar Wash.

JupiterNaked Eye · High in the sky

RISES02:16

BEST TIME09:22S · 58° high

SETS16:31

Reaches about 58° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · Good height

RISES18:12

BEST TIME00:20S · 45° high

SETS06:29

Reaches about 45° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · Good height

RISES08:40

BEST TIME13:29S · 25° high

SETS18:10

Reaches about 25° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:25

BEST TIME08:48S · 61° high

SETS16:14

Reaches about 61° 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.