OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

47.62°N, 16.28°EEurope/Vienna

Deep Astronomical Night-27.5° (< −18°)

20:35:10

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM10h 8m of true darkness · 13h 34m total night

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

TRUE DARK SKY WINDOW

Sunset17:52

Civil Dusk18:24

Nautical18:59

Full Dark19:35

Nadir00:39

Dark Ends05:43

Nautical06:19

Civil Dawn06:55

Sunrise07:26

LIVE REAL-TIME OBSERVATION

SunsetSunrise

LOCAL SKY PLANISPHERE · STEREOGRAPHIC PROJECTION

All-Sky Nocturnal Dome

Click any body to inspect telemetry

LUNAR EPHEMERISWaxing Gibbous

ILLUMINATION93%

ALTITUDE36.5°

DISTANCE379,843 km

Moonrise16:27

Moonset05:13

HorizonAbove

LUNAR INTERFERENCE INDEX55% · Moderate Lunar Glow

Milky Way contrast is softened. Bright open clusters and double stars are optimal.

ATMOSPHERIC SEEING & CLOUD PROFILETonight's Index

73/100

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 Europe/Vienna

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Below Horizon	-4.3	-33.4°	281°	Libra	07:47	12:33	17:12	Naked Eye
Jupiter♃	Below Horizon	-2.0	-27.5°	2°	Leo	01:19	08:27	15:39	Naked Eye
Saturn♄	Optimal Visibility	0.3	30.9°	128°	Pisces	17:17	23:25	05:34	Naked Eye
Mars♂	Below Horizon	1.0	-23.4°	10°	Cancer	00:28	07:54	15:22	Naked Eye
Mercury☿	Below Horizon	0.4	-21.2°	262°	Libra	09:33	13:57	18:21	Binoculars
Uranus♅	Visible Low	5.6	11.7°	72°	Taurus	19:15	02:57	10:43	Binoculars
Neptune♆	Optimal Visibility	7.8	33.0°	136°	Pisces	16:55	22:56	04:56	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

RISES16:27

BEST TIME22:43S · 44° high

SETS05:13

Reaches about 44° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Moderate Lunar Glow.

JupiterNaked Eye · High in the sky

RISES01:19

BEST TIME08:27S · 57° high

SETS15:39

Reaches about 57° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · Good height

RISES17:17

BEST TIME23:25S · 44° high

SETS05:34

Reaches about 44° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · Good height

RISES07:47

BEST TIME12:33S · 24° high

SETS17:12

Reaches about 24° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES00:28

BEST TIME07:54S · 60° high

SETS15:22

Reaches about 60° 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.