OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

18.49°N, 97.53°WAmerica/Mexico_City

Daylight+46.9°

10:09:17

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

Sunset18:02

Civil Dusk18:24

Nautical18:49

Full Dark19:15

Nadir00:14

Dark Ends05:13

Nautical05:38

Civil Dawn06:04

Sunrise06:26

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-70.2°

DISTANCE380,389 km

Moonrise16:17

Moonset03:58

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	43.3°	140°	Libra	06:31	12:07	17:43	Naked Eye
Jupiter♃	Optimal Visibility	-2.0	59.9°	267°	Leo	01:43	08:05	14:26	Naked Eye
Saturn♄	Below Horizon	0.3	-66.1°	325°	Pisces	16:56	23:04	05:07	Naked Eye
Mars♂	Optimal Visibility	1.0	52.4°	276°	Cancer	01:03	07:30	13:57	Naked Eye
Mercury☿	Visible Low	0.4	26.6°	126°	Libra	07:59	13:31	19:04	Binoculars
Uranus♅	Below Horizon	5.6	-13.6°	298°	Taurus	20:00	02:35	09:06	Binoculars
Neptune♆	Below Horizon	7.8	-70.9°	342°	Pisces	16:29	22:34	04:35	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

RISES16:17

BEST TIME22:32S · 76° high

SETS03:58

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

JupiterNaked Eye · High in the sky

RISES01:43

BEST TIME08:05S · 86° high

SETS14:26

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

RISES16:56

BEST TIME23:04S · 73° high

SETS05:07

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

RISES06:31

BEST TIME12:07S · 54° high

SETS17:43

Reaches about 54° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:03

BEST TIME07:30S · 89° high

SETS13:57

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.