OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

18.86°N, 99.33°WAmerica/Mexico_City

Daylight+53.2°

10:57:24

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM9h 58m of true darkness · 12h 25m total night

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

TRUE DARK SKY WINDOW

Sunset18:08

Civil Dusk18:31

Nautical18:56

Full Dark19:22

Nadir00:21

Dark Ends05:20

Nautical05:46

Civil Dawn06:12

Sunrise06:34

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-67.5°

DISTANCE380,209 km

Moonrise16:24

Moonset04:05

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	48.6°	152°	Libra	06:38	12:14	17:50	Naked Eye
Jupiter♃	Optimal Visibility	-2.0	50.2°	270°	Leo	01:50	08:12	14:34	Naked Eye
Saturn♄	Below Horizon	0.3	-69.4°	352°	Pisces	17:03	23:11	05:14	Naked Eye
Mars♂	Optimal Visibility	1.0	42.8°	277°	Cancer	01:10	07:38	14:05	Naked Eye
Mercury☿	Optimal Visibility	0.4	33.8°	133°	Libra	08:07	13:39	19:10	Binoculars
Uranus♅	Below Horizon	5.6	-21.8°	303°	Taurus	20:06	02:42	09:13	Binoculars
Neptune♆	Below Horizon	7.8	-70.9°	14°	Pisces	16:36	22:37	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

RISES16:24

BEST TIME22:40S · 76° high

SETS04:05

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

JupiterNaked Eye · High in the sky

RISES01:50

BEST TIME08:12S · 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

RISES17:03

BEST TIME23:11S · 73° high

SETS05:14

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

RISES06:38

BEST TIME12:14S · 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

RISES01:10

BEST TIME07:38S · 89° high

SETS14:05

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.