OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

24.06°N, 107.01°WAmerica/Mazatlan

Daylight+41.9°

09:40:01

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM10h 3m of true darkness · 12h 35m total night

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

TRUE DARK SKY WINDOW

Sunset17:34

Civil Dusk17:57

Nautical18:24

Full Dark18:50

Nadir23:52

Dark Ends04:53

Nautical05:20

Civil Dawn05:46

Sunrise06:10

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-64.4°

DISTANCE380,274 km

Moonrise15:55

Moonset03:37

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/Mazatlan

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Optimal Visibility	-4.3	38.0°	141°	Libra	06:17	11:45	17:13	Naked Eye
Jupiter♃	Optimal Visibility	-2.0	60.8°	256°	Leo	01:15	07:43	14:11	Naked Eye
Saturn♄	Below Horizon	0.3	-60.4°	328°	Pisces	16:33	22:41	04:45	Naked Eye
Mars♂	Optimal Visibility	1.0	54.2°	267°	Cancer	00:33	07:08	13:43	Naked Eye
Mercury☿	Visible Low	0.4	21.9°	127°	Libra	07:47	13:09	18:32	Binoculars
Uranus♅	Below Horizon	5.6	-9.5°	298°	Taurus	19:27	02:13	08:54	Binoculars
Neptune♆	Below Horizon	7.8	-65.0°	342°	Pisces	16:07	22:12	04:12	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

RISES15:55

BEST TIME22:11S · 71° high

SETS03:37

Reaches about 71° above the horizon at its highest point.Waxing Gibbous (92% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:15

BEST TIME07:43S · 80° high

SETS14:11

Reaches about 80° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:33

BEST TIME22:41S · 67° high

SETS04:45

Reaches about 67° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES06:17

BEST TIME11:45S · 48° high

SETS17:13

Reaches about 48° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES00:33

BEST TIME07:08S · 84° high

SETS13:43

Reaches about 84° 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.