OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

18.89°N, 103.87°WAmerica/Mexico_City

Daylight+46.5°

10:33:56

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

Sunset18:27

Civil Dusk18:49

Nautical19:15

Full Dark19:40

Nadir00:39

Dark Ends05:38

Nautical06:04

Civil Dawn06:30

Sunrise06:52

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-69.7°

DISTANCE380,297 km

Moonrise16:43

Moonset04:24

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	42.9°	140°	Libra	06:57	12:32	18:08	Naked Eye
Jupiter♃	Optimal Visibility	-2.0	60.1°	266°	Leo	02:08	08:30	14:52	Naked Eye
Saturn♄	Below Horizon	0.3	-65.6°	326°	Pisces	17:21	23:29	05:32	Naked Eye
Mars♂	Optimal Visibility	1.0	52.6°	275°	Cancer	01:28	07:56	14:23	Naked Eye
Mercury☿	Visible Low	0.4	26.2°	126°	Libra	08:25	13:57	19:28	Binoculars
Uranus♅	Below Horizon	5.6	-13.3°	298°	Taurus	20:24	03:00	09:32	Binoculars
Neptune♆	Below Horizon	7.8	-70.5°	342°	Pisces	16:54	22:59	05:00	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

RISES16:43

BEST TIME22:59S · 76° high

SETS04:24

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

JupiterNaked Eye · High in the sky

RISES02:08

BEST TIME08:30S · 86° high

SETS14:52

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

RISES17:21

BEST TIME23:29S · 73° high

SETS05:32

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

RISES06:57

BEST TIME12:32S · 53° high

SETS18:08

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

RISES01:28

BEST TIME07:56S · 89° high

SETS14:23

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.