Grahas (ग्रहाः)

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MW

ग्रह m. a planet (as seizing or influencing the destinies of men in a supernatural manner ; sometimes 5 are enumerated , viz. Mars , Mercury , Jupiter , Venus , and Saturn MBh. vi , 4566 f. R. i , 19 , 2 Ragh. iii , 13 etc. ; also 7 i.e. the preceding with राहुand केतुMBh. vii , 5636 ; also 9 i.e. the sun [See. S3Br. iv , 6 , 5 , 1 and 5 MBh. xiii , 913 ; xiv , 1175 ] and moon with the 7 preceding Ya1jn5. i , 295 MBh. iv , 48 VarBr2S. ; also the polar star is called a ग्रह, Garg. ( Jyot. 5 Sch. ) ; the planets are either auspicious शुभ-, सद्-, or inauspicious क्रूर-, पाप-VarBr2S. ; with जैनs they constitute one of the 5 classes of the ज्योतिष्कs)

Graha-gaṇa, as, m. the whole number of planets taken collectively

Graha-gaṇita, am, n. = gaṇita, the astronomical part of a Jyotiḥ-śāstra.

Graha-ćintaka, as, m. an astrologer.

Graha-nāyaka, as, m. the leader of the planets; the planet Saturn; the sun.

Graha-nemi, is, m. the moon.

Graha-pati, is, m. the chief of the planets, the sun; the plant Calotropis Gigantea [cf. arka], = gṛha-pati.

Graha-pīḍana, am, n. or grahapīḍā, f. the pain or oppression caused by a planet; the obscurity caused by Rāhu, an eclipse; the influence of an unpropitious planet.

--Graha-pusha, as, m. the sun (cherishing the planets with his light).

--Grahapūjā, f. worship of the sun and other planets.

--Graha-bhakti, is, f. distribution among the planets, division of countries &c. with respect to the presiding planets; title of the sixteenth chapter in Varāha-mihira's Bṛhat-saṃhitā.

Graha-mardana, am, n. friction or opposition between the planets.

--Graha-yajṅa or grahayāga, as, m. worship or sacrifice offered to the planets.

Graha-yuti, is, m. conjunction of the planets.

--Graha-yuddha, am, n. strife or opposition of the planets; title of the seventeenth Adhyāya of Varāha-mihira's Bṛhatsaṃhitā.

--Graha-rāja, as, m. the king of the planets; the sun; the moon; the planet Jupiter or its regent.

Grahavarsha, as, m. a planetary year; title of the nineteenth Adhyāya of Varāha-mihira's Bṛhat-saṃhitā, which describes the good or evil fortune belonging to certain days, months or years ruled over by particular planets.

--Graha-vipra, as, m. an astrologer.

--Graha-vimarda, as, m. friction of the planets, opposition, = graha-mardana.

--Graha-śānti, is, f. propitiation of the planets by sacrifices &c.

--Grahaśṛńgāṭaka, am, n. triangular position of the planets with reference to each other; title of the twentieth Adhyāya in Varāha-mihira's Bṛhat-saṃhitā, treating also of many other positions of the planets.

--Grahasamāgama, as, m. conjunction of the planets; also in the comp. śaśi-graha-samāgama, conjunction of the moon with asterisms or planets.

--Grahādhāra (ºha-ādhº), as, m. the polar star as the fixed centre of the planets.

Grahārāma-kutūhala or karaṇa-kutūhala, am, n., N. of an astronomical work by Bhāskara.

Grahāvamardana (ºha-avº), am, n. friction of the planets, opposition; [cf. graha-mardana.]

--Graheśa (ºha-īśº), as, m. the chief of the planets, the sun.

MW Eng-Sansk

PLANET, s. ग्रहः, भ्रमन् ग्रहः, तारा, तारका -कं, ज्योतिस् n., ज्योतिषी, ज्योतिष्कः, खेचरः, खगः, गगणेचरः, गगणाध्वगः, विहगः, खोल्कः, नक्षत्रं, ऋक्षः, द्युषद् m., द्युसद् m., भं; ‘minor planet,’ उपग्रहः; ‘the planets collectively,’ ग्रहगणः, ज्योतिर्गणः, ग्रहमण्डलं, भ्रमन्तो ग्रहाः m. pl.; ‘the nine planets,’ नवग्रहाः m. pl. These, according to the Hindu4s, are 1. the sun, सूर्य्यः; 2. the moon, चन्द्रः; 3. Mercury, बुधः; 4. Venus, शुक्रः; 5. Mars, मङ्गलः; 6. Jupiter, गुरुः m.; 7. Saturn, शनिः m.; 8. the ascending node, राहुः m.; 9. the descending node, केतुः m. The two last are considered to be minor planets. The other names of the planets will be found under each separate head of Mercury, &c

--(Auspicious planet) शुभग्रहः, सुग्रहः, सौम्यग्रहः; of these there are four, viz. Mercury, Venus, Jupiter, and the Moon

--(Inauspicious planet) कुग्रहः, अशुभग्रहः, पापग्रहः; of these there are five, viz. Mars, Saturn, the Sun, and the two nodes. ‘Planet at its apex,’ तुङ्गी m. (न्); ‘motion of the planets,’ ग्रहचारः; ‘motion in their orbits,’ गतिः f.; ‘passage of a planet,’ सङ्क्रमः, सङ्क्रान्तिः f.; ‘conjunction,’ सङ्गमः; ‘aspect,’ ग्रहदशा; ‘influence,’ ग्रहयोगः, ग्रहावेशः; ‘unpropitious influence,’ ग्रहपीडा, ग्रहबाधा; ‘propitious influence,’ ग्रहानुकूल्यं, ग्रहबलं; ‘worship of the planets,’ ग्रहपूजा; ‘propitiation of them,’ ग्रहशान्तिः f., ग्रहसाधनं; ‘sacrifice in propitiation of them,’ ग्रहयागः, ग्रहयज्ञः, ग्रहमखः; ‘presents made to Bra4hmans for propitiating them,’ ग्रहदानं; ‘incantations to render them propitious,’ ग्रहजपः; ‘ascertainment of their aspect,’ ग्रहसाधनं; ‘calculations or tables for determining their position,’ ग्रहसारणी; ‘diagram representing their aspect,’ ग्रहकुण्डली; ‘meeting of the seven planets under one sign,’ सप्तग्रहसङ्गमः.

Apte

PLANET, s. ग्रहः, भ्रमन् ग्रहः, तारा, तारका -कं, ज्योतिस् n., ज्योतिषी, ज्योतिष्कः, खेचरः, खगः, गगणेचरः, गगणाध्वगः, विहगः, खोल्कः, नक्षत्रं, ऋक्षः, द्युषद् m., द्युसद् m., भं; ‘minor planet,’ उपग्रहः; ‘the planets collectively,’ ग्रहगणः, ज्योतिर्गणः, ग्रहमण्डलं, भ्रमन्तो ग्रहाः m. pl.; ‘the nine planets,’ नवग्रहाः m. pl. These, according to the Hindu4s, are 1. the sun, सूर्य्यः; 2. the moon, चन्द्रः; 3. Mercury, बुधः; 4. Venus, शुक्रः; 5. Mars, मङ्गलः; 6. Jupiter, गुरुः m.; 7. Saturn, शनिः m.; 8. the ascending node, राहुः m.; 9. the descending node, केतुः m. The two last are considered to be minor planets. The other names of the planets will be found under each separate head of Mercury, &c

--(Auspicious planet) शुभग्रहः, सुग्रहः, सौम्यग्रहः; of these there are four, viz. Mercury, Venus, Jupiter, and the Moon

--(Inauspicious planet) कुग्रहः, अशुभग्रहः, पापग्रहः; of these there are five, viz. Mars, Saturn, the Sun, and the two nodes. ‘Planet at its apex,’ तुङ्गी m. (न्); ‘motion of the planets,’ ग्रहचारः; ‘motion in their orbits,’ गतिः f.; ‘passage of a planet,’ सङ्क्रमः, सङ्क्रान्तिः f.; ‘conjunction,’ सङ्गमः; ‘aspect,’ ग्रहदशा; ‘influence,’ ग्रहयोगः, ग्रहावेशः; ‘unpropitious influence,’ ग्रहपीडा, ग्रहबाधा; ‘propitious influence,’ ग्रहानुकूल्यं, ग्रहबलं; ‘worship of the planets,’ ग्रहपूजा; ‘propitiation of them,’ ग्रहशान्तिः f., ग्रहसाधनं; ‘sacrifice in propitiation of them,’ ग्रहयागः, ग्रहयज्ञः, ग्रहमखः; ‘presents made to Bra4hmans for propitiating them,’ ग्रहदानं; ‘incantations to render them propitious,’ ग्रहजपः; ‘ascertainment of their aspect,’ ग्रहसाधनं; ‘calculations or tables for determining their position,’ ग्रहसारणी; ‘diagram representing their aspect,’ ग्रहकुण्डली; ‘meeting of the seven planets under one sign,’ सप्तग्रहसङ्गमः.

Shabda Sagara

m. (-हः)

1. Taking, whether by seizure or acceptance.

2. An eclipse or seizure of the sun or moon, by RAHU, &c.

3. A planet.

4. The place of a planet in the fixed zodiac.

5. A moveable point in the heavens.

6. A name of RAHU, or the ascending node.

7. An imp, one of a particular class, beginning with PUTANA, supposed especially to seize upon young children producing convulsions.

8. Effort in battle.

9. Tenacity, perseverance.

10. Purpose, design.

11. Favor, patronage. E. ग्रह् to take, &c. affix अच्.

Amarakosha

ग्रह पुं।

ग्रहणम्

समानार्थक:उपराग,ग्रह

1।4।9।2।2

सा दृष्टेन्दुः सिनीवाली सा नष्टेन्दुकला कुहूः। उपरागो ग्रहो राहुग्रस्ते त्विन्दौ च पूष्णि च॥

वैशिष्ट्य : अर्कादयः

पदार्थ-विभागः : , द्रव्यम्, कालः

Kalpadruma

ग्रहः, पुं, (गृह्णाति गतिविशेषानिति । यद्वा, गृह्णाति फलदातृत्वेन जीवानिति । ग्रह् + “विभाषा ग्रहः ।” ३ । १ । १४३ । इति पक्षे अच् ।) सूर्य्यादिनव । यथा । रविसोममङ्गल- बुधबृहस्पतिशुक्रशनिराहुकेतवः । (यदुक्तम्, -- “सूर्य्यश्चन्द्रो मङ्गलश्च बुधश्चापि बृहस्पतिः । शुक्रः शनैश्चरो राहुः केतुश्चेति नव ग्रहाः ॥” “लोकानद्रीन् स्वरान् धातून् मुनीन् द्बीपान् ग्रहानपि । समिधः सप्त सङ्ख्याताः सप्तजिह्वा हविर्भुजः ॥”

References: Bhagavata Purana, Mahabharata, Matsya Purana, Linga Purana, Garuda Purana, Ramayana, Skanda Purana (Reva Khanda), Surya Siddhanta, Raja Nighatu, Kurma Purana, Yajnavalkya Smrti, Manusmrti, Skanda Purana, Agni Purana, Sattvata Tantra, Vishnu Smrti, Dhanvantari Nighantu, Katyayana Smrti, Aitareyopanishad, Arthashastra, Gopathabrahmana, Kalika Purana, Narada Smrti, Sankhyakarika Bhashya.

Grahas in the Vedic literature

The Rgveda refers to five planets as deities, out of which it mentions Brhaspati (Jupiter) and Vena (Venus) by name.

अमी ये पञ्चोक्षणो मध्ये तस्थुर्महो दिवः । देवत्रा नु प्रवाच्यं सध्रीचीना नि वावृतुर्वित्तं मे अस्य रोदसी ॥१०॥ Rg. 1.105.10

बृहस्पतिः प्रथमं जायमानो महो ज्योतिषः परमे व्योमन् । सप्तास्यस्तुविजातो रवेण वि सप्तरश्मिरधमत्तमांसि ॥४॥ Rg. 4.50.4

अयं वेनश्चोदयत्पृश्निगर्भा ज्योतिर्जरायू रजसो विमाने । इममपां संगमे सूर्यस्य शिशुं न विप्रा मतिभी रिहन्ति ॥१॥ Rg. 10.123.1

अथ मन्थिनं गृह्णाति । अयं वेनश्चोदयत्पृश्निगर्भा ज्योतिर्जरायू रजसो विमाने इममपां संगमे सूर्यस्य शिशुं न विप्रा मतिभी रिहन्ति उपयामगृहीतोऽसि मर्काय त्वेति - ४.२.१.[१०] Shat. brah. 4.2.1

Shani (Saturn), Rahu (Moon's ascending node), and Ketu (Moon's descending node) are mentioned in the Maitrayani Upanishad 7.6

शनिराहुकेतूरगरक्षोयक्षनरविहगशरभेभादयोऽधस्तादुद्यन्ति तपन्ति वर्षन्ति स्तुवन्ति पुनर्विशन्ति अन्तर्विवरेणेक्षन्ति यः प्राज्ञो विधरणः सर्वान्तरोऽक्षरः शुद्धः पूतः भान्तः क्षान्तः शान्तः ॥ ७.६॥ Mait. Upan. 7.6

It also mentions 34 lights which, in all probability, are the Sun, the Moon, the 5 planets and the 27 nakshatras (Rg 10.55.3)

आ रोदसी अपृणादोत मध्यं पञ्च देवाँ ऋतुशः सप्तसप्त । चतुस्त्रिंशता पुरुधा वि चष्टे सरूपेण ज्योतिषा विव्रतेन ॥३॥ Rg. 10.55.3.

The Rgveda describes the Sun as the sole light-giver of the universe, the cause of the seasons, the controller and the lord of the world.

एक एवाग्निर्बहुधा समिद्ध एकः सूर्यो विश्वमनु प्रभूतः । एकैवोषाः सर्वमिदं वि भात्येकं वा इदं वि बभूव सर्वम् ॥२॥ Rg. 8.58.2

त्रीणि जाना परि भूषन्त्यस्य समुद्र एकं दिव्येकमप्सु । पूर्वामनु प्र दिशं पार्थिवानामृतून्प्रशासद्वि दधावनुष्ठु ॥३॥ Rg. 1.95.3

सनेमि चक्रमजरं वि वावृत उत्तानायां दश युक्ता वहन्ति । सूर्यस्य चक्षू रजसैत्यावृतं तस्मिन्नार्पिता भुवनानि विश्वा ॥१४॥ Rg. 1.164.14

Aitareya brahmana 2.7 describes Sun as the cause of the wind. The Moon is called Surya-rashmi ie. one which shines by sunlight (Taittiriya Samhita 3.4.7.1)

ऋताषाड् ऋतधामाग्निर् गन्धर्वस् तस्यौषधयो ऽप्सरस ऊर्जो नाम स इदम् ब्रह्म क्षत्रम् पातु ता इदम् ब्रह्म क्षत्रम् पान्तु तस्मै स्वाहा ताभ्यः स्वाहा सꣳहितो विश्वसामा सूर्यो गन्धर्वस् तस्य मरीचयो ऽप्सरस आयुवः सुषुम्नः सूर्यरश्मिश् चन्द्रमा गन्धर्वस् तस्य नक्षत्राण्य् अप्सरसो बेकुरयः । भुज्युः सुपर्णो यज्ञो गन्धर्वस् तस्य दक्षिणा अप्सरस स्तवाः प्रजापतिर् विश्वकर्मा मनः Tait. Samh. 3.4.7.1.

According to the Taittiriya brahmana 3.1.1, "Jupiter when born was first visible in the nakshatra Tishya (Pushya).

बृहस्पतिः प्रथमं जायमानः । तिष्यं नक्षत्रमभि संबभूव ।

Evolution in the study of the Grahas

The study of the five planets, that were known in the vedic period, came to be included within the scope of astronomy in the post-vedic period. And astronomy began to be studied as a science for its own sake outgrowing its original purpose of providing a calendar for the performance of Vedic yajnas.

The various facets related to the grahas that were studied were:

• their synodic motion
• the times of their first and last visibility
• the duration of their appearance and disappearance
• the distance from the Sun at the time of their first and last visibility
• the times of their retrograde motion
• the distances from the Sun at the times of their becoming retrograde and re-retrograde

It also studied the motion of the planets in various zodiacal signs under different velocities called gatis (viz. very fast, fast, mean, slow, very slow, retrograde, very retrograde, and re-retrograde) along their varying paths called vithis.

The synodic motion of a planet, called grahachara, was elaborately recorded in the astrological works particularly the samhitas, the earlier works of the Jainas, the earlier puranas, and the earlier siddhantas such as the Vasishthasiddhanta and the Paulishasiddhanta. Analysis of these records led to the evolution of a few crude methods and empirical formulae to get the longitudes of the planets. Later, a systematic theory was established giving rise to the astronomy of the later Siddhantas.

The synodic motion of the planets and the empirical formulae for knowing the positions of the planets Jupiter and Saturn were described in the Vasishthasiddhanta which is the earliest of the astronomical works written in the post-vedic period. This is known through the summary of the Vasishthasiddhanta available in the Panchasiddhantika of Varahamihira.

The motion of the planets, visibility of the Moon and eclipses are dealt with in the Paulishasiddhanta also. In the treatment of the planetary motion, it gives the distances from the Sun at which the planets rise or set heliacally and become retrograde and re-retrograde. However, Paulisha's treatment of the visibility of the planets and the eclipses is considered to be very approximate.

A synodic year is the time it takes for a planet-sun alignment to reoccur.

The synodic periods (in days) of the planets according to Vasishtha, Paulisha, Aryabhata, Ptolemy and the modern astronomers are as follows:

Synodic periods in days

Planet	Vasishtha	Paulisha	Aryabhata	Ptolemy	Modern
Mars	779.955	799.978	779.92	779.943	779.936
Mercury	115.879	115.875	115.87	115.879	115.877
Jupiter	398.889	398.885	398.889	398.886	398.884
Venus	583.909	583.906	583.89	584.000	583.921
Saturn	378.1	378.110	378.08	378.093	378.092