OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

21.86°N, 102.66°WAmerica/Mexico_City

Daylight+54.0°

11:40:31

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM10h 1m of true darkness · 12h 31m total night

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

TRUE DARK SKY WINDOW

Sunset18:19

Civil Dusk18:42

Nautical19:08

Full Dark19:34

Nadir00:35

Dark Ends05:35

Nautical06:01

Civil Dawn06:27

Sunrise06:50

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-61.4°

DISTANCE380,047 km

Moonrise16:37

Moonset04:19

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/Mexico_City

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Optimal Visibility	-4.3	48.5°	163°	Libra	06:56	12:27	17:59	Naked Eye
Jupiter♃	Optimal Visibility	-2.0	43.2°	269°	Leo	02:00	08:25	14:50	Naked Eye
Saturn♄	Below Horizon	0.3	-66.1°	11°	Pisces	17:16	23:20	05:28	Naked Eye
Mars♂	Optimal Visibility	1.0	36.2°	277°	Cancer	01:19	07:51	14:23	Naked Eye
Mercury☿	Optimal Visibility	0.4	36.4°	141°	Libra	08:25	13:52	19:18	Binoculars
Uranus♅	Below Horizon	5.6	-25.8°	309°	Taurus	20:14	02:55	09:32	Binoculars
Neptune♆	Below Horizon	7.8	-65.4°	30°	Pisces	16:49	22:50	04:55	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

RISES16:37

BEST TIME22:54S · 73° high

SETS04:19

Reaches about 73° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES02:00

BEST TIME08:25S · 83° high

SETS14:50

Reaches about 83° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES17:16

BEST TIME23:20S · 70° high

SETS05:28

Reaches about 70° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES06:56

BEST TIME12:27S · 50° high

SETS17:59

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

RISES01:19

BEST TIME07:51S · 86° high

SETS14:23

Reaches about 86° 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.