OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

18.95°N, 99.50°WAmerica/Mexico_City

Daylight+55.4°

11:16:17

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM9h 58m of true darkness · 12h 26m total night

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

TRUE DARK SKY WINDOW

Sunset18:09

Civil Dusk18:31

Nautical18:57

Full Dark19:23

Nadir00:22

Dark Ends05:21

Nautical05:47

Civil Dawn06:12

Sunrise06:35

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-65.3°

DISTANCE380,138 km

Moonrise16:25

Moonset04:06

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	50.3°	158°	Libra	06:39	12:15	17:50	Naked Eye
Jupiter♃	Optimal Visibility	-2.0	45.9°	271°	Leo	01:51	08:13	14:34	Naked Eye
Saturn♄	Below Horizon	0.3	-69.4°	5°	Pisces	17:04	23:07	05:15	Naked Eye
Mars♂	Optimal Visibility	1.0	38.5°	278°	Cancer	01:11	07:38	14:06	Naked Eye
Mercury☿	Optimal Visibility	0.4	36.8°	137°	Libra	08:08	13:39	19:11	Binoculars
Uranus♅	Below Horizon	5.6	-25.4°	306°	Taurus	20:07	02:43	09:14	Binoculars
Neptune♆	Below Horizon	7.8	-69.3°	27°	Pisces	16:37	22:38	04:42	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

RISES16:25

BEST TIME22:40S · 76° high

SETS04:06

Reaches about 76° above the horizon at its highest point.Waxing Gibbous (92% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:51

BEST TIME08:13S · 86° high

SETS14:34

Reaches about 86° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES17:04

BEST TIME23:07S · 73° high

SETS05:15

Reaches about 73° 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 TIME12:15S · 53° high

SETS17:50

Reaches about 53° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:11

BEST TIME07:38S · 89° high

SETS14:06

Reaches about 89° 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.