diff --git a/orbitize/hipparcos.py b/orbitize/hipparcos.py
index 187ed395..6c6a4a15 100644
--- a/orbitize/hipparcos.py
+++ b/orbitize/hipparcos.py
@@ -521,11 +521,11 @@ def log_prob(model_pars):
             myHipLogProb.plx0 + 3 * myHipLogProb.plx0_err,
             1000,
         )
-        axes[0].hist(sampler.flatchain[:, 0], bins=50, density=True, color="r")
+        axes[0].hist(sampler.flatchain[:, 0], bins=50, density=True, color="grey")
         axes[0].plot(
             xs, norm(myHipLogProb.plx0, myHipLogProb.plx0_err).pdf(xs), color="k"
         )
-        axes[0].set_xlabel("plx [mas]")
+        axes[0].set_xlabel("$\pi$ [mas]")
 
         # PM RA
         xs = np.linspace(
@@ -533,11 +533,11 @@ def log_prob(model_pars):
             myHipLogProb.pm_ra0 + 3 * myHipLogProb.pm_ra0_err,
             1000,
         )
-        axes[1].hist(sampler.flatchain[:, 1], bins=50, density=True, color="r")
+        axes[1].hist(sampler.flatchain[:, 1], bins=50, density=True, color="grey")
         axes[1].plot(
             xs, norm(myHipLogProb.pm_ra0, myHipLogProb.pm_ra0_err).pdf(xs), color="k"
         )
-        axes[1].set_xlabel("PM RA [mas/yr]")
+        axes[1].set_xlabel("$\mu_{{\\alpha_0^*}}$ [mas/yr]")
 
         # PM Dec
         xs = np.linspace(
@@ -545,27 +545,30 @@ def log_prob(model_pars):
             myHipLogProb.pm_dec0 + 3 * myHipLogProb.pm_dec0_err,
             1000,
         )
-        axes[2].hist(sampler.flatchain[:, 2], bins=50, density=True, color="r")
+        axes[2].hist(sampler.flatchain[:, 2], bins=50, density=True, color="grey")
         axes[2].plot(
             xs, norm(myHipLogProb.pm_dec0, myHipLogProb.pm_dec0_err).pdf(xs), color="k"
         )
-        axes[2].set_xlabel("PM Dec [mas/yr]")
+        axes[2].set_xlabel("$\mu_{{\\delta_0}}$ [mas/yr]")
 
         # RA offset
-        axes[3].hist(sampler.flatchain[:, 3], bins=50, density=True, color="r")
+        axes[3].hist(sampler.flatchain[:, 3], bins=50, density=True, color="grey")
         xs = np.linspace(
             -3 * myHipLogProb.alpha0_err, 3 * myHipLogProb.alpha0_err, 1000
         )
         axes[3].plot(xs, norm(0, myHipLogProb.alpha0_err).pdf(xs), color="k")
-        axes[3].set_xlabel("RA Offset [mas]")
+        axes[3].set_xlabel("$\\alpha_0^*$ [mas]")
 
         # Dec offset
         xs = np.linspace(
             -3 * myHipLogProb.delta0_err, 3 * myHipLogProb.delta0_err, 1000
         )
-        axes[4].hist(sampler.flatchain[:, 4], bins=50, density=True, color="r")
+        axes[4].hist(sampler.flatchain[:, 4], bins=50, density=True, color="grey")
         axes[4].plot(xs, norm(0, myHipLogProb.delta0_err).pdf(xs), color="k")
-        axes[4].set_xlabel("Dec Offset [mas]")
+        axes[4].set_xlabel("$\delta_0$ [mas]")
+
+        for a in axes:
+            a.set_ylabel('relative prob.')
 
         plt.tight_layout()
         plt.savefig(saveplot, dpi=250)
diff --git a/orbitize/plot.py b/orbitize/plot.py
index 0b5a1ef3..9eb85a3b 100644
--- a/orbitize/plot.py
+++ b/orbitize/plot.py
@@ -74,24 +74,24 @@ def plot_corner(results, param_list=None, **corner_kwargs):
     default_labels = {
 
         "sma": "$a_{{B}}$ [au]",
-        "ecc": "$ecc_{{B}}$",
-        "inc": "$inc_{{B}}$ [$^\\circ$]",
+        "ecc": "$ecc$",
+        "inc": "$i$ [$^\\circ$]",
         "aop": "$\\omega_{{B}}$ [$^\\circ$]",
-        "pan": "$\\Omega_{{B}}$ [$^\\circ$]",
-        "tau": "$\\tau_{{B}}$",
+        "pan": "$\\Omega$ [$^\\circ$]",
+        "tau": "$\\tau$",
         "tp": "$T_{{\\mathrm{{P}}}}$",
         "plx": "$\\pi$ [mas]",
         "gam": "$\\gamma$ [km/s]",
         "sig": "$\\sigma$ [km/s]",
         "mtot": "$M_T$ [M$_{{\\odot}}$]",
-        "m0": "$M_{{A}}$ [M$_{{\\odot}}$]",
-        "m": "$M_{{B}}$ [M$_{{\\odot}}$]",
+        "m0": "$M_{{a}}$ [M$_{{\\odot}}$]",
+        "m": "$M_{{b}}$ [M$_{{\\odot}}$]",
         "pm_ra": "$\\mu_{{\\alpha^{{*}}}}$ [mas/yr]",
         "pm_dec": "$\\mu_{{\\delta}}$ [mas/yr]",
         "alpha0": "$\\alpha^{{*}}_{{0}}$ [mas]",
         "delta0": "$\\delta_0$ [mas]",
         # "m": "$M_{0}$ [M$_{{\\rm Jup}}$]",
-        "per": "$P_{{B}}$ [yr]",
+        "per": "$P$ [yr]",
         "K": "$K_{0}$ [km/s]",
         "x": "$X_{0}$ [AU]",
         "y": "$Y_{0}$ [AU]",