In: Atti
del XVI Convegno della Societŕ
Italiana di Archeoastronomia “Quis dubitet hominem coniungere caelo?”, a cura
di E. Antonello, ed. La Cittŕ del Sole, Napoli, pp. 69-77, ISBN
978-88-8292-504-8.
SIRIUS WAS ALREADY WHITE
Mario Codebň, Athanasios Fourlis
Abstract.
Commonly, the
adjective ὑπόκιρρος, that Ptolemy used for only six,
different stars in his Almagest and for only three stars in his Tetrabiblos, is translated “reddish”. Because these stars
have very different colours at the present, modern astronomers were always
obliged to try to explain why Sirius was described as “reddish” instead of
white (as it really is) by
Ptolemy. Several hypotheses were advanced. We
propose here:
1)
a “strong” hypothesis that the adjective ὑπόκιρρος means “yellowish”;
2)
a “weak” hypothesis that ὑπόκιρρος means “iridescent”;
3) the witness written in the Avestā, the holy book of the Zoroastrian religion, that the colour of Sirius before Ptolemy was white.
1.Introduction
In the Stars’ Catalogue of his Μαθηματική Σύνταξις,
commonly known as The Almagest,
Ptolemy describes 1022 stars from the first to the sixth magnitude, but only
for six of them he uses an adjective – ὑπόκιρρος – that always had been translated as
“reddish”. The six stars are:
Aldebaran (spectral class K5)
Antares (spectral class M1)
Betelgeuse (spectral class M2)
Arcturus (spectral class K1)
Pollux (spectral class K0)
Sirius (spectral class A1).
For the human eyes two of these stars – Antares and
Betelgeuse – seems to be really red; two others – Aldebaran
and Arcturus – seems to be orange; one – Pollux – seems to be yellow and the last one – Sirius –
seems to be white.
In his book Τῶν
πρός Σύρον ἀποτελεσματικῶν τέσσαρα
βιβλία, commonly known as The Tetrabiblos (Feraboli 19892,
pp. 42, 44; 48), Ptolemy uses the same adjective ὑπόκιρρος only for three stars: Aldebaran (names here λαμπαύρας
= bright), Antares and Arcturus. Here he does not use
any adjective for Betelgeuse, Pollux and Sirius.
This opens three questions:
1) What is the exact meaning of the adjective ὑπόκιρρος?
2) Why Ptolemy only used an adjective for six stars
out of 1022 in the “Stars’ Catalogue” of his Almagest (Heiberg 1903; Toomer 1998)?
3) Why did he used the same adjective for so many, different coloured, stars?
2.Schiaparelli’s
hypotheses
The common translation of ὑπόκιρρος into reddish obliged
astronomers to explain how it is possible that a reddish star changed its
colour into white in a span time less than one millennium, because the Muslim
astronomer Al Sufi describes Sirius as white star in the 10th century AD (Ferreri 2015, p. 40).
Because Sirius is a double star, a modern
hypothesis tries to explain the change of colour as the transformation of
Sirius B, previously giant and red, into the present white dwarf star (Ferreri 2015, pp. 40 – 42).
But this hypothesis is not very convincing.
The Italian astronomer Giovanni Virginio Schiaparelli wrote, respectively in 1896 and in
1897, the two important reports Rubra Canicula. Considerazioni
sulla mutazione di colore che si dice avvenuta in Sirio and Rubra Canicula.
Nuove considerazioni sulla mutazione di colore che si dice avvenuta in Sirio
(De Meis, Gnoli, Panaino 1998, pp. 179 – 234) supposing
that the change of colour was only
a translation mistake since the Roman Age. He supposed, with convincing
arguments, that the Latin translation “Rubra Canicula” – i.e. the “little female reddish dog” – is
related not to Sirius but to the red star Procyon in Canis Minor constellation, that rises some days before Canis Major. Indeed Schiaparelli describes the ancient
Greek myth of Icarius, of his daughter Erigones and of their little female dog Maira
who were all changed in heavenly constellations (respectively: Bootes, Virgo and Procyon or Canis Minor) by the Olympians Gods. He describes also an
ancient Latin sacrifice – the Robigalia – on
occasion in which, every 25th April, Romans sacrificed a little red female dog
to Robigo, the goddes of
the rust. Schiaparelli infers that Rubra Canicula, Maira, the Robigalia and Procyon had the
same meaning and that Romans mistook the red star Procyon
for Sirius.
3.Etymological
discussion
We think that this confusion between Procyon Rubra Canicula and Sirius ὑπόκιρρος led wrongly to translate this adjective as reddish. But ὑπόκιρρος
does not mean reddish!
3.1 The
meaning of κιρρός
According to the dictionaries Gemoll 19367
and Rocci 1948, these are the meanings for ὑπόκιρρος, κιρρός and their compounds:
a) κίρρος
or κιρρός = pale,
yellow;
b) ὑπόκιρρος =
yellowish;
c) κιρράς =
yellow;
d) κιρροειδής =
yellowish; pale;
e) κιρροκοιλάδια = figs with yellow pulp;
f) κιρρώδης =
yellowish.
The adjective κιρρός
gives in modern languages the medical word “cirrhosis”, because the liver
becomes yellow owing to the adipose (or fat) infiltration;: κίρρωσις =
κιρρός (yellowish) and
-ωσις (condition).
Basically, the ancient authors used these adjectives meaning yellow or
white. For instance, Hippocrates wrote ὑπόκιρρος οἷνος, means
“white wine”.
Therefore, ὑπόκιρρος
does not mean a dark colour, as reddish, but, rather, a very clear colour as
yellowish or whitish, that is the current colour of Sirius. Please, note that,
in ancient Greek, σείριος
means “hot”, “burning”. Eratosthenes, in his work Καταστερισμοί (Westermann, 1843), wrote “Seirios
on the head [or tongue]. This star is large and very bright (λαμπρόν[1])
and the stars similar to it are named Seirioi by
astronomers because of the movement of the flame”. The movement of the flame is
important!
So the very true question is:
why Ptolemy used an adjective that means “yellowish or whitish”, not “reddish”,
for red stars as Antares, Betelgeuse and for orange stars as Aldebaran and Arcturus[2]?
In ancient Greek grammar ὑπόκιρρος
is a compound word (ὑπό+κιρρός) but the word ὑπό
is a preposition (Latin: ipo-; Engish
hypo- = sub, under, down, below), that, placed before the adjectives, decrease
their characteristics (downgrading the original word): for example: υποαλλεργικό
(=hypoallergenic), υποθερμία
(=hypothermia).
This fact alone is enough to
cancel the ''red–theory'' even if some researchers wrongly translate the
adjective κιρρός
as “red”, influenced by the Latin “ruber, rubra, rubrum”.
3.2
Κιρνάω, κεραννύω, κεράω, κεράννυμι
Another fact is that κιρρός may have the same root of κιρνάω, κεραννύω, κεράω, κεράννυμι, meaning basically “to mix”, signifying
the mixing and the consequently “change” (of colour, consistency, etc.).
Indeed, these verbs were used (for instance in Homer) to signify the mixing of
the wine with the water. But when the dark wine is mixed with water its colour
changes, becoming more clear or “pale” (i.e. κιρρός). In other words, the colour κιρρός may derive its meaning “yellow,
pale” from the change of the colour of dark wine mixed with water.
3.3
The colours in the antiquity
It seems that in ancient
languages did not exist the colours in the abstract as in modern ones[3],
but the colours were derived from material objects having that colour (for
instance: the red of the fire; the blue of the sky; etc. And the “bleaching” of
the dark wine mixed with water)[4].
After Greek words were taken
into Latin, the letter “K” was transliterated as a “C”. Loanwords from other
alphabets with the sound /K/ were also
transliterated with C. Hence, the Romance languages generally use C and have K
only in later loanwords from other language groups. The Celtic languages also
tended to use C instead of K, and this influence carried over into Old English.
(https://en.wikipedia.org/wiki/K)
Let's see now some examples about
the preposition ὑπό from the book written by Pedanius Dioscorides, De Materia Medica (ΠΕΔΑΝΙΟΥ ΔΙΟΣΚΟΥΡΙΔΟΥ ΑΝΑΖΑΡΒΕΩΣ, Περὶ ὕλης ἰατρικῆς) (Wellmann 1906). Now we can see how
this preposition can transform (“decrease” in this case) the adjective/colour but we can now also understand
the colours through the eyes of ancient people, as a comparison of ancient and
modern colours in the same object:
a) Wax <κηρὸς>
= ὑπόκιρρος = subpale [Vol II, 83][5]
b) Sea daffodil bulb (Pancratium Maritimum) <παγκράτιον> = ὑπόπυρρος (reddish, sub+color
of the fire, pyrros)[Vol
II, 172]
c) Honey <μέλι>
= ὑπόξανθον (sub+color of blond hair, blond = xanthos) [Vol
II, 82]
d) Anemone (for
the white species) <ἀνεμώνη>
= ὑπόλευκα (sub+white,
whitish, white = lefkos) [Vol II, 176]
f) Thlaspi
Arvense <θλάσπι>
= ὑπόλευκον (sub+white, whitish,
white = lefkos) [Vol II, 156]
Furthermore an other example (Ulrichs, 1843):
albŏgilvus,
a, um = ὑπόλευκος, κιρρός [6] (=
whitish, kirros).
Some more synonyms for ὑπόλευκος
are: ivory, pale, pallid, creamy-white, broken-white, off-white.
3.4
The root *κιρ/*κηρ and
the Linear B
An
additional hypothesis is that some words derived from the same root and
widespread in several cultures are related.
The word <kera> (κέρας), the root of which may be *κιρ/*κηρ, is already present
in the Linear B until today. Its meaning is “horn”. Some derivatives words are:
Ceratophyllum, rhinoceros, keratin, cheratina,
cranium, cranio (skull), cranosn (helmet). Common-root in Linear B <ka-ra-pi>, cara (cerebrum, head).
But the same root you can actually find in the modern and
ancient Greek adjective κιρρός = “pale”, that Macedonians
pronounce κερρός, with an ε = e instead of an ι = i (Hoffmann,
1906). Here we have the same meaning with two different pronunciations! Moreover,
the colour of the horn is generally a kind of lighter or darker “yellow”: i.e.
“pale”.
The same root *κιρ/*κηρ may also appear in
some words meaning baked clay, pottery, the colour of which is generally
“pale”.
These examples proof again, that the original
meaning of the adjective ὑπόκιρρος is not reddish but “yellowish”, “whitish”, at least “pale”.
4. Avestā’s and
other witnesses
Regarding the colour of Sirius, we have a
witness prior to Ptolemy that describes it as a white star: in the Avestā (Alberti 2008, pp. 320 – 329), the holy book of the
Zoroastrian religion, the Yašt Tīr
n. 8 is devoted to the star Tištria, that is the yazata (i.e. roughly the angel) of the star Sirius. The Yašts are thirty hymns, one for each day of
the months, devoted to the “yazata”. Some of them
precede the Zarathuštra’s
religious reform (about 9th century BC or before). They were composed during
the 1st millennium BC, i.e. before the Ptolemy’s Almagest.
Yašt Tīr n. 8, vers
No. 2, sings:
<We offer up libations unto Tištrya, the bright and glorious star, that
gives happy dwelling and good dwelling; the white[7],
shining seen afar, and piercing; the health-bringing, loud-snorting, and high,
piercing from afar with its shining, underfiled
[immaculate][8]
rays, and unto the waters of the wide sea, the Vanguhi
of wide renown, and the species of the Bull, made by Mazda, the awful kingly
Glory, and the Fravashi of the holy Spitama Zarathushtra>[9].
Moreover, some extant ancient chinese texts – from 100 B.C. to 646 A.D., i.e. about
contemporary to Ptolemy – also report that the colour of Sirius was absolutely
white, as Vega. (Jiang Xiao-Yuan, 1993):
1) Shiji Tianguanshu (Historical Records, Book of asterisms)
written by Sim Qian in 100
B.C.
2) Hanshu Tianwenzhi (History of Hall, Astronomical Chapter)
written by Ban Gu, Ban Chao and Ma Xu in 100 A.D.
3) Jinzhou Zhan (Jinzhou Book of
Prognostication) written by Liu Biao in 200 A.D.
4) Hanshu Tianwenzhi zhong (History of
Jin, Astronomical Chapter, Book 2 of 3), written by Li Chun-Feng
in 646 A.D.
Please, note that Vega is
mentioned in the Avestā too: the short Yašt 20 is fully devoted to Vanant, that is probably the star Vega (α Lyrae), named the “star of the rains”. Vanant
is mentioned in the Yašt 8,12 too, with Tištrya (Sirius, that is named here “the first
star”) and the stars Haptōiringa, that seem to
be the stars of the Ursa Major (the Great Bear or the
Plough). Here is the full verse 12 of the Yašt
8, according to www.avesta.org:
<We sacrifice unto Tishtrya;
We sacrifice unto the rains of Tishtrya. We sacrifice
unto the first star; we sacrifice unto the rains of the first star. I will
sacrifice unto the stars Haptoiringa, to oppose the Yatus and Pairikas. We sacrifice
unto Vanant, the star made by Mazda; for the well-shapen strength, for the Victory, made by Ahura, for the crushing Ascendant, for the destruction of
what distresses us, for the destruction of what persecutes us. We sacrifice
unto Tishtrya, whose eye – sight is sound.>.
Also Schiaparelli, in his article of 1896 (De Meis, Gnoli, Panaino
1998, pp. 205 – 209), listed and discussed the ancient authors who described
Sirius as a white star or, at least, not as a reddish one: Julius Iginus; the scholiast of Aratus; Manilius; Rufus Festus; Hefestio
of Thebes (in Egypt). The last of them, particularly, described four colours
(big and white; gold; red; little and pale) and four qualities (big and bright;
dull; little and dim; dark[10]) that
Sirius could show during its heliacal rising[11],
heralding the Nile’s floods. This mutability of Sirius, due to the atmospherical absorption, is in agreement with our
“translation” of the adjective ὑπόκιρρος as “iridescent”.
5.
Conclusions
Κιρρός does not mean reddish but
yellow and therefore, ὑπόκιρρος (or ὑποκιρρός) means “less than yellow”, which is the true colour of Sirius. But the question is: as this adjective does not fit on
to the other four “reddish” stars Aldebaran, Antares,
Betelgeuse, Arcturus, as listed by Ptolemy, why
Ptolemy used the same adjective for so many different stars and only for those
six, while he named 1022 stars, for which he used only the adjective λαμπρός = bright?
Because the verbs κιρνάω, κεραννύω, κεράω, κεράννυμι (that may have a
common root *κιρ/*κηρ) meaning “to mix”,
because these verbs are used by ancient authors to express the action of the
mixing of wine and water – in consequence of which the red wine change its
colour and becomes more pale – we suggest the hypothesis that ὑπόκιρρος meant in Almagest
the quick change of colour of these six bright stars, i.e. their iridescence.
This is only a proposal of course, a work
hypothesis without proofs, not a certainty! On the other side, our purpose in
this article is not to search for the true meaning of the adjective ὑπόκιρρος but to check if it
means reddish, as commonly translated, and consequently if Sirius was once
truly reddish and changed its colour in less than one millennium. We think, with
adequate certainty, that we proved here that it does not mean reddish[12].
Moreover, we found the new, unpublished witness of Avestā,
supported by Chinese witnesses and by the authors listed by Schiaparelli nearly
contemporary of Ptolemy, which demonstrates that Sirius, at the age of Ptolemy,
was already white.
Acknowledgements
Claudio Bevegni, Ancient Greek, University of Genova,
Italy.
Mario Caprini, Literature, High School teacher. Italy.
Rita Caprini, Glottology, University of Genova, Italy.
Walter Ferreri, Astronomer,
INAF – Osservatorio Astronomico di Torino, Italy.
Agostino Frosini, ship commander.
Maria Giannikou, Philology, School consultant of philologists,
University of Ioannina, Greece.
Stelios Kaouris, Philology, Aristotle University of Thessaloniki
Konstantinos Kottis, Theology, Graduate Student , Aristotle University
of Thessaloniki, Greece.
Alexandra
Schmitz, Academy of Fine Arts of Florence
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[1] λαμπρόν is the adjective more often used in
the catalogue of the stars in the Almagest.
[2] For
the yellow star Pollux, ὑπόκιρρος may be fitted.
[3] Probably only the difference between
brightness and darkness.
[4] Personal communication to us by prof. Mario Caprini and prof. Rita Caprini.
[5] The numbers between square brackets are
referred to the volumes, chapters and lines of Dioscorides’s
book.
[6] Please, note that Latin adjective albus, -a, -um means “white”. This is another
proof that κιρρός – and even more so ὑπόκιρρος – does not mean
“reddish” but “whitish.
[7] The underlining is made by us.
[8] The underlining is made by us.
[9] English version by “Avesta
Zoroastrian Archives” www.avesta.org.
[10] μέγας καὶ λαμπρός; μέλας; μικρὸς καὶ στυγνός; σκοτεινός.
[11] For astrologers who had to foresee the
discharge of the Nile’s flood.
[12] There are not yet enough data to state with
certainty what Ptolemy wanted to signify with ὑπόκιρρος.