OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

41.03°S, 70.27°WAmerica/Argentina/Salta

Daylight+60.5°

13:36:07

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM7h 5m of true darkness · 10h 27m total night

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

TRUE DARK SKY WINDOW

Sunset20:11

Civil Dusk20:40

Nautical21:15

Full Dark21:52

Nadir01:25

Dark Ends04:57

Nautical05:34

Civil Dawn06:09

Sunrise06:38

LIVE REAL-TIME OBSERVATION

SunsetSunrise

LOCAL SKY PLANISPHERE · STEREOGRAPHIC PROJECTION

All-Sky Nocturnal Dome

Click any body to inspect telemetry

LUNAR EPHEMERISWaxing Gibbous

ILLUMINATION92%

ALTITUDE-40.7°

DISTANCE380,288 km

Moonrise17:39

Moonset05:07

HorizonBelow

LUNAR INTERFERENCE INDEX0% · Minimal Lunar Glare

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

ATMOSPHERIC SEEING & CLOUD PROFILETonight's Index

42/100

Fair Stargazing

Partial haze or lunar wash. Bright clusters, double stars, and prominent planets remain well visible.

CLOUD COVER15%

HUMIDITY50%

VISIBILITY18 km

DEW POINT10.8°C

PLANETARY EPHEMERIS & ALMANAC

Visible Planets Tonight

All times calibrated to America/Argentina/Salta

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Optimal Visibility	-4.3	66.7°	349°	Libra	06:11	13:18	20:25	Naked Eye
Jupiter♃	Rising / Setting	-2.0	8.4°	297°	Leo	04:05	09:16	14:27	Naked Eye
Saturn♄	Below Horizon	0.3	-45.8°	149°	Pisces	18:14	00:11	06:12	Naked Eye
Mars♂	Rising / Setting	1.0	0.5°	294°	Cancer	03:44	08:41	13:39	Naked Eye
Mercury☿	Optimal Visibility	0.4	65.4°	40°	Libra	07:22	14:43	22:03	Binoculars
Uranus♅	Below Horizon	5.6	-56.0°	243°	Taurus	22:57	03:46	08:31	Binoculars
Neptune♆	Below Horizon	7.8	-41.0°	141°	Pisces	17:38	23:41	05:48	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

RISES17:39

BEST TIME23:40N · 44° high

SETS05:07

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

JupiterNaked Eye · Good height

RISES04:05

BEST TIME09:16N · 35° high

SETS14:27

Reaches about 35° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES18:14

BEST TIME00:11N · 48° high

SETS06:12

Reaches about 48° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES06:11

BEST TIME13:18N · 67° high

SETS20:25

Reaches about 67° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · Good height

RISES03:44

BEST TIME08:41N · 31° high

SETS13:39

Reaches about 31° 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.