OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

22.52°N, 98.13°WAmerica/Monterrey

Daylight+55.9°

12:10:16

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM10h 2m of true darkness · 12h 32m total night

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

TRUE DARK SKY WINDOW

Sunset18:00

Civil Dusk18:23

Nautical18:49

Full Dark19:16

Nadir00:16

Dark Ends05:17

Nautical05:43

Civil Dawn06:10

Sunrise06:32

LIVE REAL-TIME OBSERVATION

SunsetSunrise

LOCAL SKY PLANISPHERE · STEREOGRAPHIC PROJECTION

All-Sky Nocturnal Dome

Click any body to inspect telemetry

LUNAR EPHEMERISWaxing Gibbous

ILLUMINATION93%

ALTITUDE-53.2°

DISTANCE379,936 km

Moonrise16:19

Moonset04:00

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/Monterrey

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Optimal Visibility	-4.3	49.5°	180°	Libra	06:39	12:09	17:40	Naked Eye
Jupiter♃	Optimal Visibility	-2.0	32.1°	273°	Leo	01:41	08:07	14:33	Naked Eye
Saturn♄	Below Horizon	0.3	-60.9°	36°	Pisces	16:58	23:02	05:10	Naked Eye
Mars♂	Visible Low	1.0	25.4°	280°	Cancer	01:00	07:33	14:06	Naked Eye
Mercury☿	Optimal Visibility	0.4	42.0°	153°	Libra	08:08	13:34	18:59	Binoculars
Uranus♅	Below Horizon	5.6	-33.4°	318°	Taurus	19:55	02:37	09:15	Binoculars
Neptune♆	Below Horizon	7.8	-57.6°	50°	Pisces	16:31	22:32	04:37	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

RISES16:19

BEST TIME22:35S · 72° high

SETS04:00

Reaches about 72° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:41

BEST TIME08:07S · 82° high

SETS14:33

Reaches about 82° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:58

BEST TIME23:02S · 69° high

SETS05:10

Reaches about 69° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES06:39

BEST TIME12:09S · 50° high

SETS17:40

Reaches about 50° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:00

BEST TIME07:33S · 85° high

SETS14:06

Reaches about 85° 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.