OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

25.66°N, 103.28°WAmerica/Monterrey

Daylight+52.1°

12:09:24

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM10h 4m of true darkness · 12h 38m total night

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

TRUE DARK SKY WINDOW

Sunset18:18

Civil Dusk18:41

Nautical19:08

Full Dark19:35

Nadir00:37

Dark Ends05:39

Nautical06:06

Civil Dawn06:33

Sunrise06:56

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-54.7°

DISTANCE379,939 km

Moonrise16:39

Moonset04:21

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/Monterrey

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Optimal Visibility	-4.3	46.1°	173°	Libra	07:04	12:30	17:55	Naked Eye
Jupiter♃	Optimal Visibility	-2.0	37.1°	269°	Leo	01:58	08:28	14:58	Naked Eye
Saturn♄	Below Horizon	0.3	-60.6°	23°	Pisces	17:18	23:22	05:31	Naked Eye
Mars♂	Optimal Visibility	1.0	30.6°	276°	Cancer	01:15	07:53	14:31	Naked Eye
Mercury☿	Optimal Visibility	0.4	36.8°	149°	Libra	08:35	13:54	19:14	Binoculars
Uranus♅	Below Horizon	5.6	-27.7°	315°	Taurus	20:10	02:58	09:42	Binoculars
Neptune♆	Below Horizon	7.8	-58.8°	38°	Pisces	16:52	22:53	04:57	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

RISES16:39

BEST TIME22:56S · 69° high

SETS04:21

Reaches about 69° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:58

BEST TIME08:28S · 79° high

SETS14:58

Reaches about 79° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES17:18

BEST TIME23:22S · 66° high

SETS05:31

Reaches about 66° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES07:04

BEST TIME12:30S · 46° high

SETS17:55

Reaches about 46° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:15

BEST TIME07:53S · 82° high

SETS14:31

Reaches about 82° 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.