— THE ATLAS COLLECTION · EDITION Nº 01

Six sheets.
Six catalogues.
One darkroom.

An atlas sheet is a single page where one published catalogue has been run through the same recipes, end to end, with the parameters attached. The Messier 110, the Caldwell 109, the canonical Black Hole top-25, the Phenomena 15, the Famous Deep-Sky 30 — each one rendered as one photograph of the whole catalogue.

6
Sheets published
25
Objects, lead sheet
9
Palette families
225
Plates, lead sheet
— SHEET 01

Black Hole
Atlas.

25 × 9 = 225 plates
Photoreal recipe family
1snob AstroRoom Black Hole Atlas — 25 objects × 9 photoreal palette families
— LEAD SHEET

Twenty-five
black holes,
nine ways
to look.

Twenty-five supermassive, stellar, and intermediate-mass black holes, rendered side by side under nine palette families — from a Hubble Heritage warm-edge through a Chandra hard-band false colour to a polarisation-hue wheel. The same source FITS run through every recipe so the differences on the sheet are differences in recipe, not in data. Hand the sheet to a peer reviewer with the recipe attached and the picture is reproducible.

25
Objects
9
Palettes
225
Plates
FITS
Source
— THE OTHER FIVE SHEETS

Five catalogues,
one darkroom.

Catalogues integrated
via SIMBAD + tier framework
Messier catalogue atlas — 110 objects on one sheetM1 → M110
Sheet 02 · Messier · 110 objects1771 → present

The Messier sheet.

M1 to M110. Charles Messier's eighteenth-century catalogue of "things that aren't comets." A single sheet, all hundred and ten, run through the 1snob AstroRoom darkroom under the same recipe family.

Caldwell catalogue atlas — 109 objects on one sheetC1 → C109
Sheet 03 · Caldwell · 109 objects1995

The Caldwell sheet.

Patrick Moore's complement to Messier. Bright deep-sky targets Messier missed because they were too far south. The sheet pairs naturally with the Messier sheet above.

Famous Deep Sky atlas — 30 objects on one sheetFamous · 30
Sheet 04 · Famous Deep Sky30 objects

The famous-by-name sheet.

The thirty deep-sky objects most people have heard of, by name. Less a catalogue than a vocabulary check.

Astrophysical phenomena atlas — 15 phenomena on one sheetPhenomena · 15
Sheet 05 · Phenomena15 phenomena

The phenomena sheet.

Fifteen astrophysical phenomena where a single object is less interesting than the kind of thing it is. Pulsar wind nebulae, accreting binaries, planetary nebulae caught in expansion.

Clean ground atlas — pure greyscale, no recipeClean
Sheet 06 · Clean groundNo recipe

The clean sheet.

A pure-greyscale render of every target the room currently holds in its base tier, no recipe applied. The atlas of the photometry, before anyone made a colour decision.

Companion sheet — 15 black holes × 9 recipe families = 135 plates15 × 9
Sheet 07 · BH companion · 15 objects9 palette families

The companion sheet.

The companion to the lead Black Hole Atlas: fifteen extra hosts run through the nine palette families — same recipes, different targets. One hundred and thirty-five plates that read in conversation with the lead sheet.

— PALETTE FAMILIES

Nine families.
Eighty-one recipes.

14 bands wired
gamma → centimetre radio

A recipe is the instruction sheet that turns raw FITS data into a coloured photograph: which band goes into which channel, which stretch, which clip percentile, which palette. 1snob AstroRoom ships eighty-one named recipes grouped under nine families. Below, the families that drive every Atlas sheet.

— 01

Hubble Heritage

The familiar warm-edge palette used in canonical Hubble releases. Gives accreting matter a fire-edge halo. Best for Sgr A* and accreting AGN.

Example: M87, Sgr A*
— 02

JWST NIRCam

Mid-infrared first. Dust separates from the underlying galaxy structure. Best for hosts of obscured nuclei.

Example: Stephan's Quintet, Centaurus A
— 03

Chandra Hard-Band

Soft / medium / hard X-ray as B / G / R. Photon energy reads as colour. Best for compact accretion features.

Example: Cygnus X-1, M87
— 04

Atacama Radio

Synchrotron jet emission against an inverted background. Best for AGN with extended radio lobes.

Example: Centaurus A, Cygnus A
— 05

Composite Infrared

A near + mid + far IR composite. The host galaxy gets the spotlight; the engine is the hot spot.

Example: NGC 4258, M82
— 06

Gamma Overlay

Fermi LAT contours over an optical underlay. Energy regimes that the human eye cannot reach, drawn on top of one it can.

Example: 3C 279, Markarian 421
— 07

Neutral Greyscale

Pure photometry. No false colour. Restores the picture to a measurement.

Example: SDSS J1630+1219, photometric work
— 08

Polarisation Hue

Magnetic-field geometry as colour wheel. Best for radio-bright AGN and pulsar wind nebulae where polarisation is the science.

Example: M87 EHT, Crab
— 09

Time-Resolved Mosaic

The same object across multiple epochs, montaged. Time becomes the third dimension of the recipe.

Example: Sgr A*, V404 Cygni

Each family contains nine specific named recipes — variations on the same compositing logic with different stretches, clip percentiles, and band weights. Eighty-one in total. The full list lives in backend/app/services/falsecolor_service.py; pass recipes=all to the API to enumerate them.

— OBJECT INDEX

The lead sheet,
twenty-five rows.

● = curated FITS manifest
○ = SIMBAD-resolved on demand
Sgr A*SMBH · 8 kpcX-ray + radio + IR
M87SMBH · 16.4 MpcX-ray + radio
Cygnus X-1Stellar BH · 2.2 kpcX-ray
NGC 1365Seyfert · 18 Mpcoptical + IR
Centaurus AAGN · 3.8 Mpcradio + X-ray
NGC 4258water-megamaser · 7.2 MpcIR + radio
3C 279blazar · z=0.536gamma + radio
Cygnus AFR-II radio · z=0.056radio
NGC 1068Seyfert · 14.4 MpcIR + X-ray
M81LINER · 3.6 MpcUV + X-ray
M82starburst+BH · 3.5 MpcIR + X-ray
NGC 3628tidal-stripped · 10.3 Mpcoptical + radio
4U 1543-47LMXB · 8 kpcX-ray
GRS 1915+105LMXB · 9 kpcX-ray
GRO J1655-40LMXB · 3.2 kpcX-ray
XTE J1550-564BH transient · 4.4 kpcX-ray
V404 CygniBH transient · 2.4 kpcX-ray
H1743-322BH transient · 8.5 kpcX-ray
IC 10 X-1HMXB · 0.7 MpcX-ray
M33 X-7HMXB · 0.85 MpcX-ray
NGC 300 X-1HMXB · 1.9 MpcX-ray
Markarian 421blazar · z=0.030gamma + X-ray
Markarian 501blazar · z=0.034gamma + X-ray
PKS 2155-304blazar · z=0.116gamma
NGC 1275Perseus A · 75 MpcX-ray + radio

The dot prefix marks objects that ship with a hand-curated FITS URL manifest in the base tier. Everything else resolves at runtime through SIMBAD TAP and SkyView. The list is extensible — Edition Nº 02 expands the lead sheet past fifty.

The Atlas is a working document. Recipes change as the public archives grow. The plate you download today carries the Merkle root of the Atlas-version it was generated under. A printed plate from Edition Nº 01 is a valid reproducible artefact even after Edition Nº 02 ships.

Read the manifesto → How the Merkle root works