PolyStar

OpenStar pedagogical star and planet modeling in JavaScript.
Visualization in HTML5. Hover for tips. Click for data coordinates. Ctrl +/- to zoom
White dots in plots below: Standard solar model tabulated in Table 3A of Guenther, Demarque, Kim & Pinsonneault, 1992, ApJ, 387, 372

Star inputs:

Mass
(0.2 - 5.0) MSun)

MSun

Radius
(0.2 - 5.0)
RSun

Y
(0.1 - 0.5)

Z
(0.001 - 0.2)

Teff white light color (Logarithmic radius)
Temperature cross-sectionBlack circle: Nuclear burning core boundary Color: log T log T=5.95 K log T=6.39 K log T=6.68 K log T=6.92 K log T=7.13 K log T=7.30 K
Star outputs:

M = 1.00 MSun

R = 1.00 RSun

LBol = 2.09 LSun

Teff: 6953.03

log g: 4.44

U-B : 0.03 B -V: 0.34 V -R : 0.21 V -I : 0.37 R-I : 0.16

V-K : 0.71 J-K : 0.16

F2 V

Planetary inputs:

Affects Habitable zone and Transit light curve

Surface pressure
(0.6 - 22000 kPa)

kPa

Greenhouse effect, ΔT
(-200 - +600 K)

K

Albedo (0.0 - 0.95)


ROrbit (AU) (0.01 - 50)

RPlanet (REarth) (0.1 - 20)

iRot (0 - 90 o)
Organic solvent
Water Methane Ammonia Carbon dioxide

Life zone for habitable planets (Logarithmic radius)Steam line 1.57 AUIce line 3.26 AU1 AU water boiling temp = 346 K
2.202.402.602.803.003.203.403.60Log10 λ (nm)12.013.014.015.0Log10 Bλ ergs s-1 cm-3 Planckian spectral energy distribution (SED) Iλ (λMax = 416.76 nm)
-1000.00100200300400500600700r (Mm)30.031.032.033.034.0Log10 Lr (erg/s)Cumulative luminosityrCore
4.5004.0003.5003.000Log10 Teff (K)-6.00-4.00-2.000.002.004.006.008.00Log10 Luminosity (LSun)Hertzsprung-Russell (H-R) Diagram 0.01 0.1 1 10 100 1000IIIIV
-1000.00100200300400500600700r (Mm)-6.00-4.00-2.000.002.004.00Log10 ρ (g cm-3)log Mass density: ρ rCore
-1000.00100200300400500600700r (Mm)4.005.006.007.008.00Log10 TKin (K)Gas temperature rCore
-1000.00100200300400500600700r (Mm)2.004.006.008.0010.012.014.016.018.0Log10 P (dynes cm-2)log Pressure: PTot PGas PRadrCore
-1000.00100200300400500600700r (Mm)-0.600-0.400-0.2000.000.2000.400Log10 κr (cm^2/g)log Mean opacity: κTot κbf κff κe- κH-
-1000.00100200300400500600700r (Mm)0.000.5001.001.502.002.50Log10 εr (erg/g/s)log Mass power generation rate: εPP εCNO
Detailed print-out (below graphs): None Radial structure

Model: Mass 1 M_Sun, Radius 1 R_Sun, Teff 6953.030388537467 K, log(g) 4.438448551053789 Y 0.28 Z 0.02

Mean molecular weight (assumes complete ionization): 0.617283950617284(a.m.u.)

Polytropic constant, K: : 597401078643997.5, polytropic index, n 3, Pgas/P 0.9983766881210677

Radial structure

i

Radius (cm)

log10 mr (cm)

log10 TKin (K)

log10 PGas (dynes cm-2)

log10 PRad (dynes cm-2)

log10 ρ (g cm-3)

log10 Lr (ergs)

0

0.0000

NaN

7.3613

17.636

14.847

2.1450

-49.000

10

1.1317e+9

29.478

7.3607

17.633

14.844

2.1433

31.733

20

2.1606e+9

30.391

7.3588

17.626

14.837

2.1376

32.521

30

3.1894e+9

30.918

7.3554

17.612

14.823

2.1276

32.974

40

4.2183e+9

31.287

7.3507

17.593

14.805

2.1134

33.273

50

5.2471e+9

31.568

7.3446

17.569

14.780

2.0951

33.478

60

6.2760e+9

31.794

7.3372

17.539

14.750

2.0727

33.621

70

7.3048e+9

31.980

7.3284

17.504

14.715

2.0466

33.720

80

8.3337e+9

32.137

7.3185

17.465

14.676

2.0168

33.786

90

9.3625e+9

32.272

7.3074

17.420

14.631

1.9835

33.830

100

1.0391e+10

32.388

7.2952

17.371

14.583

1.9469

33.858

110

1.1420e+10

32.490

7.2820

17.319

14.530

1.9073

33.876

120

1.2449e+10

32.579

7.2678

17.262

14.473

1.8648

33.887

130

1.3478e+10

32.658

7.2528

17.202

14.413

1.8196

33.893

140

1.4507e+10

32.727

7.2369

17.138

14.349

1.7720

33.897

150

1.5536e+10

32.789

7.2203

17.072

14.283

1.7222

33.900

160

1.6564e+10

32.844

7.2030

17.003

14.214

1.6704

33.902

170

1.7593e+10

32.893

7.1851

16.931

14.142

1.6166

33.903

180

1.8622e+10

32.936

7.1666

16.857

14.068

1.5612

33.904

190

1.9651e+10

32.975

7.1476

16.781

13.992

1.5042

33.905

200

2.0680e+10

33.010

7.1282

16.703

13.914

1.4459

33.905

210

2.1709e+10

33.041

7.1083

16.624

13.835

1.3862

33.906

220

2.2738e+10

33.069

7.0880

16.543

13.754

1.3254

33.906

230

2.3766e+10

33.094

7.0674

16.460

13.671

1.2635

33.906

240

2.4795e+10

33.117

7.0465

16.377

13.588

1.2007

33.906

250

2.5824e+10

33.137

7.0252

16.292

13.503

1.1370

33.906

260

2.6853e+10

33.155

7.0037

16.205

13.417

1.0724

33.906

270

2.7882e+10

33.171

6.9819

16.118

13.329

1.0070

33.906

280

2.8911e+10

33.185

6.9599

16.030

13.241

0.94092

33.906

290

2.9939e+10

33.198

6.9376

15.941

13.152

0.87407

33.906

300

3.0968e+10

33.209

6.9151

15.851

13.062

0.80650

33.906

310

3.1997e+10

33.219

6.8923

15.760

12.971

0.73822

33.906

320

3.3026e+10

33.229

6.8693

15.668

12.879

0.66922

33.906

330

3.4055e+10

33.237

6.8461

15.575

12.786

0.59948

33.906

340

3.5084e+10

33.244

6.8226

15.481

12.692

0.52898

33.906

350

3.6113e+10

33.250

6.7988

15.386

12.597

0.45767

33.906

360

3.7141e+10

33.256

6.7747

15.290

12.501

0.38552

33.906

370

3.8170e+10

33.261

6.7504

15.192

12.403

0.31245

33.906

380

3.9199e+10

33.265

6.7257

15.093

12.305

0.23841

33.906

390

4.0228e+10

33.269

6.7007

14.993

12.204

0.16331

33.906

400

4.1257e+10

33.272

6.6753

14.892

12.103

0.087052

33.906

410

4.2286e+10

33.275

6.6494

14.788

11.999

0.0095322

33.906

420

4.3314e+10

33.278

6.6231

14.683

11.894

-0.069375

33.906

430

4.4343e+10

33.280

6.5963

14.576

11.787

-0.14981

33.906

440

4.5372e+10

33.282

6.5689

14.466

11.677

-0.23193

33.906

450

4.6401e+10

33.284

6.5409

14.354

11.565

-0.31593

33.906

460

4.7430e+10

33.285

6.5122

14.240

11.451

-0.40200

33.906

470

4.8459e+10

33.286

6.4828

14.122

11.333

-0.49040

33.906

480

4.9488e+10

33.287

6.4524

14.000

11.211

-0.58139

33.906

490

5.0516e+10

33.288

6.4211

13.875

11.086

-0.67530

33.906

500

5.1545e+10

33.289

6.3887

13.746

10.957

-0.77250

33.906

510

5.2574e+10

33.290

6.3551

13.611

10.822

-0.87343

33.906

520

5.3603e+10

33.290

6.3200

13.471

10.682

-0.97859

33.906

530

5.4632e+10

33.290

6.2834

13.324

10.535

-1.0886

33.906

540

5.5661e+10

33.291

6.2448

13.170

10.381

-1.2043

33.906

550

5.6689e+10

33.291

6.2041

13.007

10.218

-1.3264

33.906

560

5.7718e+10

33.291

6.1608

12.834

10.045

-1.4563

33.906

570

5.8747e+10

33.291

6.1145

12.649

9.8597

-1.5952

33.906

580

5.9776e+10

33.291

6.0645

12.449

9.6598

-1.7451

33.906

590

6.0805e+10

33.291

6.0101

12.231

9.4420

-1.9085

33.906

600

6.1834e+10

33.291

5.9500

11.991

9.2017

-2.0887

33.906

610

6.2863e+10

33.292

5.8827

11.721

8.9326

-2.2905

33.906

620

6.3891e+10

33.292

5.8059

11.414

8.6253

-2.5211

33.906

630

6.4920e+10

33.292

5.7158

11.054

8.2647

-2.7914

33.906

640

6.5949e+10

33.292

5.6059

10.614

7.8254

-3.1209

33.906

650

6.6978e+10

33.292

5.4639

10.046

7.2574

-3.5470

33.906

660

6.8007e+10

33.292

5.2598

9.2296

6.4408

-4.1595

33.906

670

6.9036e+10

33.291

4.8807

7.7131

4.9245

-5.2969

33.906