A material study / 073
Libra: The Autumn Cellar
Ferrara · Madder cloth, oak & pewter.
September’s Libra in the Hall of Months is the calendar anchor for this autumn study. Grapes, vine leaves, oak and pewter form a separate seasonal interpretation, arranged into an imagined cellar sitting room.
01 / The palette
Six colors, one atmosphere.
Screen colors are authored interpretations. Material photographs show surface character; they are not calibrated color samples.
02 / Play with the composition
Give the ground room, then place the accent.
Adjust the six colour areas in a screen composition. The illustrated room keeps its original materials and light.
Palette proportions / Total 100%
Starting points
An editable screen composition; the room remains a fixed imagined reference.
Ivory Linen: 30%; Barrel Oak: 15%; Pewter: 10%; Madder Linen: 10%; Slate: 20%; Aubergine Velvet: 15%
The source / Art history
A month above the scene.
September at Schifanoia, attributed to Ercole de’ Roberti, places Libra below Vulcan and his forge. Our grape-and-cellar materials are a separate autumn interpretation; the source is not being described as a grape-harvest scene. Oak, pewter and madder cloth connect the drawer to an imagined sitting room.
Musei Ferrara · September, Palazzo Schifanoia (1469–1470) ↗Read the holding institution’s record. No museum photograph or manuscript scan is reproduced here.
The calendar / Computed
The dates, in two frames.
Tropical
–
Exact UTC ingresses
Enters: 2026-09-22 23:57 UTC
Next sign: 2026-10-23 09:30 UTC
Sidereal · Lahiri
–
Exact UTC ingresses
Enters: 2026-10-17 14:10 UTC
Next sign: 2026-11-16 14:01 UTC
Intervals include the entry and exclude the next boundary. Sidereal offset at ingress: 24.2314° (Lahiri). Sign transitions are refined to one minute. Refinement is computational resolution, not a claim of observational accuracy. Local calendar dates may differ from UTC.
Calculation source and version
Lunologium source revision 4d4d8ecc · astronomy-engine 2.1.19. Generated reference for 2026–2028; year labels identify the year of entry, so a Capricorn interval continues into the next January.
Take away / A constellation card
Libra, point by point.
This chart uses numerical star data supplied by HEASARC, a service of the Astrophysics Science Division at NASA/GSFC. Hoffleit & Warren, Bright Star Catalogue (1991) · Data-use terms.
North up, east left. Relative visual magnitude controls dot size. Positions use J2000.0 and a local projection with a cosine correction. The connecting lines were authored for this card; constellation boundaries and the Sun’s current position are not drawn. Print on A4 or Letter in portrait orientation.
Read the star coordinates
| Star | HR | Right ascension | Declination |
|---|---|---|---|
| 40Tau Lib | 5812 | 234.6642 | -29.7778 |
| 39Ups Lib | 5794 | 234.2563 | -28.135 |
| 20Sig Lib | 5603 | 226.0175 | -25.2819 |
| 46The Lib | 5908 | 238.4563 | -16.7294 |
| 9Alp2Lib | 5531 | 222.7196 | -16.0417 |
| 38Gam Lib | 5787 | 233.8817 | -14.7894 |
| 27Bet Lib | 5685 | 229.2517 | -9.3831 |
| 16 Lib | 5570 | 224.2958 | -4.3464 |
Tradition / Historical classification
A note on the tradition.
In the traditional classification recorded by Lunologium, Libra is cardinal air, with Venus as its traditional ruler. These are cultural categories, separate from the computed solar position and the colours sampled for this study.
03 / Translate
From a room to an interface.
The interface
Objects, rooms & materials
The Autumn Cellar
September’s Libra in the Hall of Months is the calendar anchor for this autumn study. Grapes, vine leaves, oak and pewter form a separate seasonal interpretation, arranged into an imagined cellar sitting room.
The same palette. Different roles.
Use this palette.
A suggested interface use of the study’s paper and accent. Supporting ink is added for legibility; original palette values stay intact.
#CFC1B1Supporting ink #171615Accent #1E0A11Inspect application CSS
/* Sourced from Chromologium (https://chromologium.com/studies/libra) */
/* Suggested application roles; original palette preserved separately. */
:root {
--study-surface: #CFC1B1;
--study-ink: #171615;
--study-accent: #1E0A11;
--study-accent-ink: #ffffff;
--study-original-1: #CFC1B1; /* Ivory Linen */
--study-original-2: #856146; /* Barrel Oak */
--study-original-3: #8A7E73; /* Pewter */
--study-original-4: #9F4850; /* Madder Linen */
--study-original-5: #66676A; /* Slate */
--study-original-6: #1E0A11; /* Aubergine Velvet */
}
Follow the material further.
Materials
The ingredients.
An imagined setting.
A contemporary interpretation,
with references kept beside the study.
Take away
Take the study with you.
Download swatches
Sources & interpretation
A contemporary material tray and imagined autumn wine-cellar sitting room, informed by a linked historical source. The six screen colours were sampled from this study’s specimen drawer; they are not measured historical pigments.
- Musei Ferrara · September, Palazzo Schifanoia (1469–1470)
- Musei Ferrara · illustrated Hall of Months tour
- Lunologium — Tropical and sidereal zodiac
The palette follows the authored material references in this collection. Room, object and material imagery were created for this study. These are imagined settings, with no affiliation to the fictional interface brands.
The controls explore screen composition, not physical pigment recipes or material measurements. Image rights · Image permissions