OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

6.48°S, 36.15°WAmerica/Fortaleza

Daylight+62.8°

12:57:09

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM9h 20m of true darkness · 11h 42m total night

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

TRUE DARK SKY WINDOW

Sunset17:17

Civil Dusk17:38

Nautical18:03

Full Dark18:28

Nadir23:08

Dark Ends03:49

Nautical04:13

Civil Dawn04:38

Sunrise04:59

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-32.1°

DISTANCE380,435 km

Moonrise15:09

Moonset02:45

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/Fortaleza

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Optimal Visibility	-4.3	59.7°	245°	Libra	04:53	11:02	17:12	Naked Eye
Jupiter♃	Below Horizon	-2.0	-0.4°	284°	Leo	01:05	07:00	12:55	Naked Eye
Saturn♄	Below Horizon	0.3	-44.4°	94°	Pisces	15:54	21:55	03:59	Naked Eye
Mars♂	Below Horizon	1.0	-9.0°	287°	Cancer	00:30	06:25	12:19	Naked Eye
Mercury☿	Optimal Visibility	0.4	73.8°	206°	Libra	06:15	12:26	18:38	Binoculars
Uranus♅	Below Horizon	5.6	-73.5°	333°	Taurus	19:34	01:30	07:21	Binoculars
Neptune♆	Below Horizon	7.8	-36.7°	95°	Pisces	15:24	21:25	03:30	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

RISES15:09

BEST TIME21:19N · 80° high

SETS02:45

Reaches about 80° above the horizon at its highest point.Waxing Gibbous (92% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:05

BEST TIME07:00N · 69° high

SETS12:55

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

RISES15:54

BEST TIME21:55N · 82° high

SETS03:59

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

RISES04:53

BEST TIME11:02S · 78° high

SETS17:12

Reaches about 78° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES00:30

BEST TIME06:25N · 66° high

SETS12:19

Reaches about 66° 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.