OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

7.12°S, 71.38°WAmerica/Sao_Paulo

Daylight+68.2°

14:56:13

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM9h 19m of true darkness · 11h 41m total night

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

TRUE DARK SKY WINDOW

Sunset19:39

Civil Dusk20:00

Nautical20:25

Full Dark20:50

Nadir01:29

Dark Ends06:09

Nautical06:34

Civil Dawn06:58

Sunrise07:20

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-38.4°

DISTANCE379,988 km

Moonrise17:35

Moonset05:10

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/Sao_Paulo

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Optimal Visibility	-4.3	64.8°	242°	Libra	07:12	13:23	19:33	Naked Eye
Jupiter♃	Rising / Setting	-2.0	4.1°	285°	Leo	03:26	09:20	15:15	Naked Eye
Saturn♄	Below Horizon	0.3	-49.7°	96°	Pisces	18:15	00:15	06:20	Naked Eye
Mars♂	Below Horizon	1.0	-4.0°	287°	Cancer	02:51	08:46	14:39	Naked Eye
Mercury☿	Optimal Visibility	0.4	76.0°	188°	Libra	08:35	14:47	20:59	Binoculars
Uranus♅	Below Horizon	5.6	-71.0°	319°	Taurus	21:56	03:50	09:41	Binoculars
Neptune♆	Below Horizon	7.8	-42.0°	97°	Pisces	17:44	23:45	05:51	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

RISES17:35

BEST TIME23:44N · 78° high

SETS05:10

Reaches about 78° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES03:26

BEST TIME09:20N · 69° high

SETS15:15

Reaches about 69° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES18:15

BEST TIME00:15N · 82° high

SETS06:20

Reaches about 82° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES07:12

BEST TIME13:23S · 79° high

SETS19:33

Reaches about 79° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES02:51

BEST TIME08:46N · 65° high

SETS14:39

Reaches about 65° 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.